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[PATCH v1] kunit: Don't fail test suites if one of them is empty

by Andy Shevchenko

Empty test suite is okay test suite. Don't fail the rest of the test suites if one of them is empty. Fixes: 6ebf5866f2e8 ("kunit: tool: add Python wrappers for running KUnit tests") Signed-off-by: Andy Shevchenko <andriy.shevchenko(a)linux.intel.com> --- tools/testing/kunit/kunit_parser.py | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/testing/kunit/kunit_parser.py b/tools/testing/kunit/kunit_parser.py index 8019e3dd4c32..12b9fc652ef6 100644 --- a/tools/testing/kunit/kunit_parser.py +++ b/tools/testing/kunit/kunit_parser.py @@ -242,7 +242,7 @@ def parse_test_suite(lines: List[str], expected_suite_index: int) -> TestSuite: return None test_suite.name = name expected_test_case_num = parse_subtest_plan(lines) - if not expected_test_case_num: + if expected_test_case_num is None: return None while expected_test_case_num > 0: test_case = parse_test_case(lines) -- 2.28.0

5 years, 1 month

2
1
0 0

BUG: unable to handle page fault for address - PF: supervisor read access in kernel mode

by Naresh Kamboju

while running selftests net icmp_redirect.sh the following crash noticed on x86_64 on linux-next master. BUG: unable to handle page fault for address: ffff9c00302d7872 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 2c401067 P4D 2c401067 PUD 0 Oops: 0000 [#1] SMP PTI CPU: 1 PID: 887 Comm: ip Tainted: G W K 5.9.0-next-20201016 #1 Hardware name: Supermicro SYS-5019S-ML/X11SSH-F, BIOS 2.0b 07/27/2017 RIP: 0010:__kmalloc_track_caller+0x100/0x340 Reported-by: Naresh Kamboju <naresh.kamboju(a)linaro.org> metadata: git branch: master git repo: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git git commit: b2926c108f9fd225d3fe9ea73fb5c35f48735d20 git describe: next-20201016 make_kernelversion: 5.9.0 kernel-config: http://snapshots.linaro.org/openembedded/lkft/lkft/sumo/intel-corei7-64/lkf… steps to reproduce: ---------------------------- # cd /opt/kselftests/default-in-kernel/ # ./run_kselftest.sh -t net:icmp_redirect.sh crash log: ---------- # selftests: net: icmp_redirect.sh <trim> [ 1062.257877] eth0: renamed from r1h1 [ 1062.311218] eth0: renamed from r2h1 [ 1062.321114] device eth1 left promiscuous mode [ 1062.325655] br0: port 2(eth1) entered disabled state [ 1062.325671] audit: type=1700 audit(1602906729.931:89088): dev=eth1 prom=0 old_prom=256 auid=4294967295 uid=0 gid=0 ses=4294967295 [ 1062.353160] device eth0 left promiscuous mode [ 1062.357640] br0: port 1(eth0) entered disabled state [ 1062.357707] audit: type=1700 audit(1602906729.963:89089): dev=eth0 prom=0 old_prom=256 auid=4294967295 uid=0 gid=0 ses=4294967295 [ 1062.506822] eth2: renamed from r2h2 [ 1062.516999] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready [ 1062.529632] BUG: unable to handle page fault for address: ffff9c00302d7872 [ 1062.536516] #PF: supervisor read access in kernel mode [ 1062.541655] #PF: error_code(0x0000) - not-present page [ 1062.546786] PGD 2c401067 P4D 2c401067 PUD 0 [ 1062.551058] Oops: 0000 [#1] SMP PTI [ 1062.554544] CPU: 1 PID: 887 Comm: ip Tainted: G W K 5.9.0-next-20201016 #1 [ 1062.562540] Hardware name: Supermicro SYS-5019S-ML/X11SSH-F, BIOS 2.0b 07/27/2017 [ 1062.570013] RIP: 0010:__kmalloc_track_caller+0x100/0x340 [ 1062.575325] Code: 4d 8b 04 24 65 49 8b 50 08 65 4c 03 05 01 70 20 4a 49 8b 00 48 85 c0 48 89 45 c8 0f 84 ba 01 00 00 41 8b 4c 24 28 49 8b 3c 24 <48> 8b 1c 08 48 8d 4a 01 65 48 0f c7 0f 0f 94 c0 84 c0 74 c2 41 8b [ 1062.594070] RSP: 0018:ffffb83c009f3ce8 EFLAGS: 00010286 [ 1062.599296] RAX: ffff9c00302d7872 RBX: 0000000000000cc0 RCX: 0000000000000000 [ 1062.606420] RDX: 000000000031bfb3 RSI: 0000000000000cc0 RDI: 000000000002f2d0 [ 1062.613544] RBP: ffffb83c009f3d28 R08: ffff9c541fcaf2d0 R09: 0000000000000000 [ 1062.620666] R10: ffffb83c009f3b98 R11: 0000000000000246 R12: ffff9c50c0042e00 [ 1062.627791] R13: 0000000000000cc0 R14: 0000000000000005 R15: ffffffffb5da0814 [ 1062.634917] FS: 00007f74b53d9440(0000) GS:ffff9c541fc80000(0000) knlGS:0000000000000000 [ 1062.642999] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1062.648738] CR2: ffff9c00302d7872 CR3: 0000000105d3e002 CR4: 00000000003706e0 [ 1062.655861] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 1062.662984] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 1062.670109] Call Trace: [ 1062.672558] kstrdup+0x31/0x60 [ 1062.675616] kstrdup_const+0x24/0x30 [ 1062.679193] alloc_vfsmnt+0x64/0x1a0 [ 1062.682774] clone_mnt+0x36/0x2f0 [ 1062.686092] copy_tree+0x12e/0x390 [ 1062.689498] copy_mnt_ns+0xb5/0x380 [ 1062.692983] create_new_namespaces+0x61/0x2c0 [ 1062.697340] unshare_nsproxy_namespaces+0x5a/0xb0 [ 1062.702040] ksys_unshare+0x1e5/0x370 [ 1062.705704] __x64_sys_unshare+0x12/0x20 [ 1062.709631] do_syscall_64+0x37/0x50 [ 1062.713208] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 1062.718256] RIP: 0033:0x7f74b46d4d27 [ 1062.721831] Code: 73 01 c3 48 8b 0d 71 a1 2b 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 41 a1 2b 00 f7 d8 64 89 01 48 [ 1062.740569] RSP: 002b:00007fff74b0dbb8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 1062.748135] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f74b46d4d27 [ 1062.755257] RDX: 0000000000080000 RSI: 0000000040000000 RDI: 0000000000020000 [ 1062.762380] RBP: 00007fff74b11c45 R08: 0000000000000002 R09: 0000000000000000 [ 1062.769504] R10: 0000000000000358 R11: 0000000000000206 R12: 00007fff74b10ec8 [ 1062.776628] R13: 0000000000470deb R14: 00007fff74b11c3b R15: 00007fff74b10ed0 [ 1062.783757] Modules linked in: ip6table_mangle mpls_iptunnel mpls_router sch_etf ip6table_filter xt_conntrack nf_conntrack nf_defrag_ipv4 libcrc32c ip6_tables nf_defrag_ipv6 iptable_filter ip_tables netdevsim vrf 8021q bridge stp llc sch_fq sch_ingress veth algif_hash x86_pkg_temp_thermal fuse [last unloaded: test_blackhole_dev] [ 1062.812840] CR2: ffff9c00302d7872 [ 1062.816158] ---[ end trace 47c4f9ef0796b428 ]--- [ 1062.820769] RIP: 0010:__kmalloc_track_caller+0x100/0x340 [ 1062.826081] Code: 4d 8b 04 24 65 49 8b 50 08 65 4c 03 05 01 70 20 4a 49 8b 00 48 85 c0 48 89 45 c8 0f 84 ba 01 00 00 41 8b 4c 24 28 49 8b 3c 24 <48> 8b 1c 08 48 8d 4a 01 65 48 0f c7 0f 0f 94 c0 84 c0 74 c2 41 8b [ 1062.844817] RSP: 0018:ffffb83c009f3ce8 EFLAGS: 00010286 [ 1062.850033] RAX: ffff9c00302d7872 RBX: 0000000000000cc0 RCX: 0000000000000000 [ 1062.857158] RDX: 000000000031bfb3 RSI: 0000000000000cc0 RDI: 000000000002f2d0 [ 1062.864284] RBP: ffffb83c009f3d28 R08: ffff9c541fcaf2d0 R09: 0000000000000000 [ 1062.871415] R10: ffffb83c009f3b98 R11: 0000000000000246 R12: ffff9c50c0042e00 [ 1062.878540] R13: 0000000000000cc0 R14: 0000000000000005 R15: ffffffffb5da0814 [ 1062.885662] FS: 00007f74b53d9440(0000) GS:ffff9c541fc80000(0000) knlGS:0000000000000000 [ 1062.893740] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1062.899475] CR2: ffff9c00302d7872 CR3: 0000000105d3e002 CR4: 00000000003706e0 [ 1062.906600] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 1062.913726] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 1062.920850] BUG: sleeping function called from invalid context at /usr/src/kernel/include/linux/percpu-rwsem.h:49 [ 1062.931101] in_atomic(): 0, irqs_disabled(): 1, non_block: 0, pid: 887, name: ip [ 1062.938485] INFO: lockdep is turned off. [ 1062.942403] irq event stamp: 2686 [ 1062.945715] hardirqs last enabled at (2685): [<ffffffffb6aef301>] _raw_spin_unlock_irqrestore+0x31/0x40 [ 1062.955186] hardirqs last disabled at (2686): [<ffffffffb6adfb31>] irqentry_enter+0x21/0x50 [ 1062.963522] softirqs last enabled at (1978): [<ffffffffb6755555>] release_sock+0x85/0xb0 [ 1062.971686] softirqs last disabled at (1976): [<ffffffffb67554ee>] release_sock+0x1e/0xb0 [ 1062.979850] CPU: 1 PID: 887 Comm: ip Tainted: G D W K 5.9.0-next-20201016 #1 [ 1062.987841] Hardware name: Supermicro SYS-5019S-ML/X11SSH-F, BIOS 2.0b 07/27/2017 [ 1062.995310] Call Trace: [ 1062.997756] dump_stack+0x7d/0x9f [ 1063.001066] ___might_sleep+0x163/0x250 [ 1063.004897] __might_sleep+0x4a/0x80 [ 1063.008469] exit_signals+0x33/0x2f0 [ 1063.012047] do_exit+0xa9/0xcb0 [ 1063.015185] rewind_stack_do_exit+0x17/0x20 [ 1063.019369] RIP: 0033:0x7f74b46d4d27 [ 1063.022941] Code: 73 01 c3 48 8b 0d 71 a1 2b 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 41 a1 2b 00 f7 d8 64 89 01 48 [ 1063.041677] RSP: 002b:00007fff74b0dbb8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 1063.049233] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f74b46d4d27 [ 1063.056359] RDX: 0000000000080000 RSI: 0000000040000000 RDI: 0000000000020000 [ 1063.063483] RBP: 00007fff74b11c45 R08: 0000000000000002 R09: 0000000000000000 [ 1063.070614] R10: 0000000000000358 R11: 0000000000000206 R12: 00007fff74b10ec8 [ 1063.077739] R13: 0000000000470deb R14: 00007fff74b11c3b R15: 00007fff74b10ed0 # ./icmp_redirect.sh: line 165: 887 Killed ip -netns r1 li add eth1 type veth peer name r2r1 [ 1067.354852] BUG: unable to handle page fault for address: ffff9c00302d7872 [ 1067.361741] #PF: supervisor read access in kernel mode [ 1067.361742] #PF: error_code(0x0000) - not-present page [ 1067.361743] PGD 2c401067 P4D 2c401067 PUD 0 [ 1067.361746] Oops: 0000 [#2] SMP PTI [ 1067.361747] CPU: 1 PID: 332 Comm: systemd-journal Tainted: G D W K 5.9.0-next-20201016 #1 [ 1067.361748] Hardware name: Supermicro SYS-5019S-ML/X11SSH-F, BIOS 2.0b 07/27/2017 [ 1067.361751] RIP: 0010:__kmalloc_track_caller+0x100/0x340 [ 1067.361753] Code: 4d 8b 04 24 65 49 8b 50 08 65 4c 03 05 01 70 20 4a 49 8b 00 48 85 c0 48 89 45 c8 0f 84 ba 01 00 00 41 8b 4c 24 28 49 8b 3c 24 <48> 8b 1c 08 48 8d 4a 01 65 48 0f c7 0f 0f 94 c0 84 c0 74 c2 41 8b [ 1067.361754] RSP: 0018:ffffb83c00ca7ad8 EFLAGS: 00010286 [ 1067.361755] RAX: ffff9c00302d7872 RBX: 0000000000000a20 RCX: 0000000000000000 [ 1067.361755] RDX: 000000000031bfb3 RSI: 0000000000000a20 RDI: 000000000002f2d0 [ 1067.361756] RBP: ffffb83c00ca7b18 R08: ffff9c541fcaf2d0 R09: 0000000000000000 [ 1067.361757] R10: ffffffffb884f560 R11: ffffb83c00ca7dd8 R12: ffff9c50c0042e00 [ 1067.361757] R13: 0000000000000a20 R14: 0000000000000007 R15: ffffffffb603d886 [ 1067.361758] FS: 00007f0aa293b480(0000) GS:ffff9c541fc80000(0000) knlGS:0000000000000000 [ 1067.361759] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1067.361760] CR2: ffff9c00302d7872 CR3: 00000001040e2006 CR4: 00000000003706e0 [ 1067.361761] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 1067.361761] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 1067.361762] Call Trace: [ 1067.361766] kmemdup+0x20/0x50 [ 1067.361769] security_sid_to_context_core+0x86/0x290 [ 1067.361771] ? __might_fault+0x79/0x80 [ 1067.361774] security_sid_to_context+0x14/0x20 [ 1067.515084] selinux_secid_to_secctx+0x1d/0x20 [ 1067.519522] security_secid_to_secctx+0x41/0x60 [ 1067.524054] unix_dgram_recvmsg+0x46b/0x600 [ 1067.528241] ? lock_release+0xcf/0x270 [ 1067.531995] sock_recvmsg+0x6d/0x70 [ 1067.535486] ____sys_recvmsg+0x9b/0x1b0 [ 1067.539325] ? import_iovec+0x1b/0x20 [ 1067.542989] ? copy_msghdr_from_user+0x60/0x90 [ 1067.547426] ? avc_has_perm+0x139/0x2b0 [ 1067.551259] ___sys_recvmsg+0x8c/0xd0 [ 1067.554923] ? sock_ioctl+0x280/0x3c0 [ 1067.558580] ? file_has_perm+0xc6/0xd0 [ 1067.562324] ? sock_ioctl+0x280/0x3c0 [ 1067.565984] __sys_recvmsg+0x66/0xb0 [ 1067.569561] ? __sys_recvmsg+0x66/0xb0 [ 1067.573307] ? do_syscall_64+0x13/0x50 [ 1067.577058] __x64_sys_recvmsg+0x1f/0x30 [ 1067.580975] do_syscall_64+0x37/0x50 [ 1067.584547] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 1067.589602] RIP: 0033:0x7f0aa20e26a7 [ 1067.593179] Code: 44 00 00 41 54 41 89 d4 55 48 89 f5 53 89 fb 48 83 ec 10 e8 8b eb ff ff 44 89 e2 48 89 ee 89 df 41 89 c0 b8 2f 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 35 44 89 c7 48 89 44 24 08 e8 c4 eb ff ff 48 [ 1067.611924] RSP: 002b:00007ffec379aca0 EFLAGS: 00000293 ORIG_RAX: 000000000000002f [ 1067.619487] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f0aa20e26a7 [ 1067.626611] RDX: 0000000040000040 RSI: 00007ffec379ad10 RDI: 0000000000000004 [ 1067.633737] RBP: 00007ffec379ad10 R08: 0000000000000000 R09: 000000000000042a [ 1067.640867] R10: 00000000ffffffff R11: 0000000000000293 R12: 0000000040000040 [ 1067.647993] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000000 [ 1067.655118] Modules linked in: ip6table_mangle mpls_iptunnel mpls_router sch_etf ip6table_filter xt_conntrack nf_conntrack nf_defrag_ipv4 libcrc32c ip6_tables nf_defrag_ipv6 iptable_filter ip_tables netdevsim vrf 8021q bridge stp llc sch_fq sch_ingress veth algif_hash x86_pkg_temp_thermal fuse [last unloaded: test_blackhole_dev] [ 1067.684200] CR2: ffff9c00302d7872 [ 1067.687511] ---[ end trace 47c4f9ef0796b429 ]--- [ 1067.692123] RIP: 0010:__kmalloc_track_caller+0x100/0x340 [ 1067.697425] Code: 4d 8b 04 24 65 49 8b 50 08 65 4c 03 05 01 70 20 4a 49 8b 00 48 85 c0 48 89 45 c8 0f 84 ba 01 00 00 41 8b 4c 24 28 49 8b 3c 24 <48> 8b 1c 08 48 8d 4a 01 65 48 0f c7 0f 0f 94 c0 84 c0 74 c2 41 8b [ 1067.716163] RSP: 0018:ffffb83c009f3ce8 EFLAGS: 00010286 [ 1067.721380] RAX: ffff9c00302d7872 RBX: 0000000000000cc0 RCX: 0000000000000000 [ 1067.728505] RDX: 000000000031bfb3 RSI: 0000000000000cc0 RDI: 000000000002f2d0 [ 1067.735629] RBP: ffffb83c009f3d28 R08: ffff9c541fcaf2d0 R09: 0000000000000000 [ 1067.742753] R10: ffffb83c009f3b98 R11: 0000000000000246 R12: ffff9c50c0042e00 [ 1067.749874] R13: 0000000000000cc0 R14: 0000000000000005 R15: ffffffffb5da0814 [ 1067.756999] FS: 00007f0aa293b480(0000) GS:ffff9c541fc80000(0000) knlGS:0000000000000000 [ 1067.765078] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1067.770813] CR2: ffff9c00302d7872 CR3: 00000001040e2006 CR4: 00000000003706e0 [ 1067.777938] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 1067.785060] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 1067.792185] BUG: sleeping function called from invalid context at /usr/src/kernel/include/linux/percpu-rwsem.h:49 [ 1067.802429] in_atomic(): 0, irqs_disabled(): 1, non_block: 0, pid: 332, name: systemd-journal [ 1067.810941] INFO: lockdep is turned off. [ 1067.814859] irq event stamp: 16046288 [ 1067.818523] hardirqs last enabled at (16046287): [<ffffffffb6aef8c7>] _raw_write_unlock_irq+0x27/0x40 [ 1067.827816] hardirqs last disabled at (16046288): [<ffffffffb6ae8724>] __schedule+0x624/0x950 [ 1067.836334] softirqs last enabled at (16044926): [<ffffffffb6e00308>] __do_softirq+0x308/0x42a [ 1067.845018] softirqs last disabled at (16044919): [<ffffffffb6c00f82>] asm_call_irq_on_stack+0x12/0x20 [ 1067.854316] CPU: 1 PID: 332 Comm: systemd-journal Tainted: G D W K 5.9.0-next-20201016 #1 [ 1067.863432] Hardware name: Supermicro SYS-5019S-ML/X11SSH-F, BIOS 2.0b 07/27/2017 [ 1067.870903] Call Trace: [ 1067.873349] dump_stack+0x7d/0x9f [ 1067.876668] ___might_sleep+0x163/0x250 [ 1067.880506] __might_sleep+0x4a/0x80 [ 1067.884078] exit_signals+0x33/0x2f0 [ 1067.887656] do_exit+0xa9/0xcb0 [ 1067.890796] rewind_stack_do_exit+0x17/0x20 [ 1067.894980] RIP: 0033:0x7f0aa20e26a7 [ 1067.898551] Code: 44 00 00 41 54 41 89 d4 55 48 89 f5 53 89 fb 48 83 ec 10 e8 8b eb ff ff 44 89 e2 48 89 ee 89 df 41 89 c0 b8 2f 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 35 44 89 c7 48 89 44 24 08 e8 c4 eb ff ff 48 [ 1067.917294] RSP: 002b:00007ffec379aca0 EFLAGS: 00000293 ORIG_RAX: 000000000000002f [ 1067.924852] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f0aa20e26a7 [ 1067.931975] RDX: 0000000040000040 RSI: 00007ffec379ad10 RDI: 0000000000000004 [ 1067.939100] RBP: 00007ffec379ad10 R08: 0000000000000000 R09: 000000000000042a [ 1067.946224] R10: 00000000ffffffff R11: 0000000000000293 R12: 0000000040000040 [ 1067.953348] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000000 [ 1067.961618] systemd[1]: systemd-journald.service: Service has no hold-off time, scheduling restart. [ 1067.970722] systemd[1]: systemd-journald.service: Scheduled restart job, restart counter is at 1. [ 1067.980063] systemd[1]: Stopped Flush Journal to Persistent Storage. [ 1067.986435] systemd[1]: Stopping Flush Journal to Persistent Storage... [ 1067.993060] systemd[1]: Stopped Journal Service. [ 1067.998163] audit: type=1334 audit(1602906735.603:89090): prog-id=43815 op=LOAD [ 1068.005571] audit: type=1334 audit(1602906735.611:89091): prog-id=43816 op=LOAD [ 1068.005978] systemd[1]: Starting Journal Service... [ 1068.014259] audit: type=1305 audit(1602906735.619:89092): op=set audit_enabled=1 old=1 auid=4294967295 ses=4294967295 subj=kernel res=1 [ 1068.014935] systemd-journald[890]: File /run/log/journal/b58194f5bd004118b8471b91dd8d1ce6/system.journal corrupted or uncleanly shut down, renaming and replacing. [ 1068.044478] audit: type=1334 audit(1602906735.624:89093): prog-id=11 op=UNLOAD [ 1068.051740] audit: type=1334 audit(1602906735.624:89094): prog-id=10 op=UNLOAD [ 1068.072184] systemd[1]: Started Journal Service. [ 1068.077987] BUG: unable to handle page fault for address: ffff9c00302d7872 [ 1068.084862] #PF: supervisor read access in kernel mode [ 1068.089991] #PF: error_code(0x0000) - not-present page [ 1068.095122] PGD 2c401067 P4D 2c401067 PUD 0 [ 1068.099388] Oops: 0000 [#3] SMP PTI [ 1068.102873] CPU: 1 PID: 891 Comm: (urnalctl) Tainted: G D W K 5.9.0-next-20201016 #1 [ 1068.111562] Hardware name: Supermicro SYS-5019S-ML/X11SSH-F, BIOS 2.0b 07/27/2017 [ 1068.119037] RIP: 0010:__kmalloc+0x100/0x330 [ 1068.123220] Code: 4d 8b 04 24 65 49 8b 50 08 65 4c 03 05 a1 7a 20 4a 49 8b 00 48 85 c0 48 89 45 c8 0f 84 bf 01 00 00 41 8b 4c 24 28 49 8b 3c 24 <48> 8b 1c 08 48 8d 4a 01 65 48 0f c7 0f 0f 94 c0 84 c0 74 c2 41 8b [ 1068.141958] RSP: 0018:ffffb83c00107e20 EFLAGS: 00010286 [ 1068.147181] RAX: ffff9c00302d7872 RBX: 0000000000000cc0 RCX: 0000000000000000 [ 1068.154307] RDX: 000000000031bfb3 RSI: 0000000000000cc0 RDI: 000000000002f2d0 [ 1068.161431] RBP: ffffb83c00107e60 R08: ffff9c541fcaf2d0 R09: 0000000000000000 [ 1068.168554] R10: 0000000000000000 R11: 0000000000000001 R12: ffff9c50c0042e00 [ 1068.175678] R13: 0000000000000cc0 R14: 0000000000000005 R15: 0000000000000000 [ 1068.182803] FS: 00007f31ad0f4840(0000) GS:ffff9c541fc80000(0000) knlGS:0000000000000000 [ 1068.190880] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1068.196616] CR2: ffff9c00302d7872 CR3: 00000001040e2001 CR4: 00000000003706e0 [ 1068.203740] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 1068.210865] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 1068.217986] Call Trace: [ 1068.220436] ? kernfs_fop_write+0xcf/0x1c0 [ 1068.224533] kernfs_fop_write+0xcf/0x1c0 [ 1068.228458] vfs_write+0xed/0x240 [ 1068.231768] ksys_write+0xad/0xf0 [ 1068.235080] __x64_sys_write+0x1a/0x20 [ 1068.238833] do_syscall_64+0x37/0x50 [ 1068.242411] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 1068.247456] RIP: 0033:0x7f31ab8ed177 [ 1068.251033] Code: 0f 1f 00 41 54 49 89 d4 55 48 89 f5 53 89 fb 48 83 ec 10 e8 5b ad 01 00 4c 89 e2 48 89 ee 89 df 41 89 c0 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 35 44 89 c7 48 89 44 24 08 e8 94 ad 01 00 48 [ 1068.269769] RSP: 002b:00007ffe1b95a340 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 [ 1068.277327] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f31ab8ed177 [ 1068.284451] RDX: 0000000000000004 RSI: 000055bf0a08e8f0 RDI: 0000000000000003 [ 1068.291575] RBP: 000055bf0a08e8f0 R08: 0000000000000000 R09: 00007ffe1b95a2a5 [ 1068.298700] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000004 [ 1068.305823] R13: 0000000000000004 R14: 00007f31abbb2760 R15: 0000000000000004 [ 1068.312951] Modules linked in: ip6table_mangle mpls_iptunnel mpls_router sch_etf ip6table_filter xt_conntrack nf_conntrack nf_defrag_ipv4 libcrc32c ip6_tables nf_defrag_ipv6 iptable_filter ip_tables netdevsim vrf 8021q bridge stp llc sch_fq sch_ingress veth algif_hash x86_pkg_temp_thermal fuse [last unloaded: test_blackhole_dev] [ 1068.342031] CR2: ffff9c00302d7872 [ 1068.345342] ---[ end trace 47c4f9ef0796b42a ]--- [ 1068.349953] RIP: 0010:__kmalloc_track_caller+0x100/0x340 ref: https://lkft.validation.linaro.org/scheduler/job/1851078#L11407 -- Linaro LKFT https://lkft.linaro.org

5 years, 1 month

1
0
0 0

[PATCH v3] lib: kunit: add test_min_heap test conversion to KUnit

by Vitor Massaru Iha

This adds the conversion of the runtime tests of test_min_heap, from `lib/test_min_heap.c` to KUnit tests. Signed-off-by: Vitor Massaru Iha <vitor(a)massaru.org> --- v2: * change Kconfig entries to be more adherent to KUnit documentation, min_heap test runs when enabling full test coverage (KUNIT_ALL_TESTS). * make kconfig help more concise; * fix KUNIT_TEST sufix; v3: * change KUNIT_EXPECT_FALSE_MSG for KUNIT_EXPECT_LE and KUNIT_EXPECT_GE where they are applicable; --- lib/Kconfig.debug | 24 +++-- lib/Makefile | 2 +- lib/{test_min_heap.c => min_heap_kunit.c} | 111 +++++++++++----------- 3 files changed, 72 insertions(+), 65 deletions(-) rename lib/{test_min_heap.c => min_heap_kunit.c} (62%) diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index 4f09c6505a2e..0e10ef1176de 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -1915,16 +1915,6 @@ config TEST_LIST_SORT If unsure, say N. -config TEST_MIN_HEAP - tristate "Min heap test" - depends on DEBUG_KERNEL || m - help - Enable this to turn on min heap function tests. This test is - executed only once during system boot (so affects only boot time), - or at module load time. - - If unsure, say N. - config TEST_SORT tristate "Array-based sort test" depends on DEBUG_KERNEL || m @@ -2256,6 +2246,20 @@ config BITS_TEST If unsure, say N. +config MIN_HEAP_KUNIT_TEST + tristate "KUnit test for Min heap" if !KUNIT_ALL_TESTS + depends on KUNIT + default KUNIT_ALL_TESTS + help + Enable this to turn on min heap function tests. This test is + executed only once during system boot (so affects only boot time), + or at module load time. + + For more information on KUnit and unit tests in general please refer + to the KUnit documentation in Documentation/dev-tools/kunit/. + + If unsure, say N. + config TEST_UDELAY tristate "udelay test driver" help diff --git a/lib/Makefile b/lib/Makefile index d862d41fdc3d..03d12e672cf8 100644 --- a/lib/Makefile +++ b/lib/Makefile @@ -68,7 +68,6 @@ CFLAGS_test_ubsan.o += $(call cc-disable-warning, vla) UBSAN_SANITIZE_test_ubsan.o := y obj-$(CONFIG_TEST_KSTRTOX) += test-kstrtox.o obj-$(CONFIG_TEST_LIST_SORT) += test_list_sort.o -obj-$(CONFIG_TEST_MIN_HEAP) += test_min_heap.o obj-$(CONFIG_TEST_LKM) += test_module.o obj-$(CONFIG_TEST_VMALLOC) += test_vmalloc.o obj-$(CONFIG_TEST_OVERFLOW) += test_overflow.o @@ -343,3 +342,4 @@ obj-$(CONFIG_BITFIELD_KUNIT) += bitfield_kunit.o obj-$(CONFIG_LIST_KUNIT_TEST) += list-test.o obj-$(CONFIG_LINEAR_RANGES_TEST) += test_linear_ranges.o obj-$(CONFIG_BITS_TEST) += test_bits.o +obj-$(CONFIG_MIN_HEAP_KUNIT_TEST) += min_heap_kunit.o diff --git a/lib/test_min_heap.c b/lib/min_heap_kunit.c similarity index 62% rename from lib/test_min_heap.c rename to lib/min_heap_kunit.c index d19c8080fd4d..97c5771f2b5e 100644 --- a/lib/test_min_heap.c +++ b/lib/min_heap_kunit.c @@ -7,9 +7,8 @@ #include <linux/log2.h> #include <linux/min_heap.h> -#include <linux/module.h> -#include <linux/printk.h> #include <linux/random.h> +#include <kunit/test.h> static __init bool less_than(const void *lhs, const void *rhs) { @@ -29,37 +28,28 @@ static __init void swap_ints(void *lhs, void *rhs) *(int *)rhs = temp; } -static __init int pop_verify_heap(bool min_heap, +static __init void pop_verify_heap(struct kunit *context, + bool min_heap, struct min_heap *heap, const struct min_heap_callbacks *funcs) { int *values = heap->data; - int err = 0; int last; last = values[0]; min_heap_pop(heap, funcs); while (heap->nr > 0) { if (min_heap) { - if (last > values[0]) { - pr_err("error: expected %d <= %d\n", last, - values[0]); - err++; - } + KUNIT_EXPECT_LE(context, last, values[0]); } else { - if (last < values[0]) { - pr_err("error: expected %d >= %d\n", last, - values[0]); - err++; - } + KUNIT_EXPECT_GE(context, last, values[0]); } last = values[0]; min_heap_pop(heap, funcs); } - return err; } -static __init int test_heapify_all(bool min_heap) +static __init void test_heapify_all(struct kunit *context, bool min_heap) { int values[] = { 3, 1, 2, 4, 0x8000000, 0x7FFFFFF, 0, -3, -1, -2, -4, 0x8000000, 0x7FFFFFF }; @@ -73,12 +63,11 @@ static __init int test_heapify_all(bool min_heap) .less = min_heap ? less_than : greater_than, .swp = swap_ints, }; - int i, err; + int i; /* Test with known set of values. */ min_heapify_all(&heap, &funcs); - err = pop_verify_heap(min_heap, &heap, &funcs); - + pop_verify_heap(context, min_heap, &heap, &funcs); /* Test with randomly generated values. */ heap.nr = ARRAY_SIZE(values); @@ -86,12 +75,10 @@ static __init int test_heapify_all(bool min_heap) values[i] = get_random_int(); min_heapify_all(&heap, &funcs); - err += pop_verify_heap(min_heap, &heap, &funcs); - - return err; + pop_verify_heap(context, min_heap, &heap, &funcs); } -static __init int test_heap_push(bool min_heap) +static __init void test_heap_push(struct kunit *context, bool min_heap) { const int data[] = { 3, 1, 2, 4, 0x80000000, 0x7FFFFFFF, 0, -3, -1, -2, -4, 0x80000000, 0x7FFFFFFF }; @@ -106,25 +93,22 @@ static __init int test_heap_push(bool min_heap) .less = min_heap ? less_than : greater_than, .swp = swap_ints, }; - int i, temp, err; + int i, temp; /* Test with known set of values copied from data. */ for (i = 0; i < ARRAY_SIZE(data); i++) min_heap_push(&heap, &data[i], &funcs); - - err = pop_verify_heap(min_heap, &heap, &funcs); + pop_verify_heap(context, min_heap, &heap, &funcs); /* Test with randomly generated values. */ while (heap.nr < heap.size) { temp = get_random_int(); min_heap_push(&heap, &temp, &funcs); } - err += pop_verify_heap(min_heap, &heap, &funcs); - - return err; + pop_verify_heap(context, min_heap, &heap, &funcs); } -static __init int test_heap_pop_push(bool min_heap) +static __init void test_heap_pop_push(struct kunit *context, bool min_heap) { const int data[] = { 3, 1, 2, 4, 0x80000000, 0x7FFFFFFF, 0, -3, -1, -2, -4, 0x80000000, 0x7FFFFFFF }; @@ -139,7 +123,7 @@ static __init int test_heap_pop_push(bool min_heap) .less = min_heap ? less_than : greater_than, .swp = swap_ints, }; - int i, temp, err; + int i, temp; /* Fill values with data to pop and replace. */ temp = min_heap ? 0x80000000 : 0x7FFFFFFF; @@ -149,8 +133,7 @@ static __init int test_heap_pop_push(bool min_heap) /* Test with known set of values copied from data. */ for (i = 0; i < ARRAY_SIZE(data); i++) min_heap_pop_push(&heap, &data[i], &funcs); - - err = pop_verify_heap(min_heap, &heap, &funcs); + pop_verify_heap(context, min_heap, &heap, &funcs); heap.nr = 0; for (i = 0; i < ARRAY_SIZE(data); i++) @@ -161,34 +144,54 @@ static __init int test_heap_pop_push(bool min_heap) temp = get_random_int(); min_heap_pop_push(&heap, &temp, &funcs); } - err += pop_verify_heap(min_heap, &heap, &funcs); + pop_verify_heap(context, min_heap, &heap, &funcs); +} - return err; +static void __init test_heapify_all_true(struct kunit *context) +{ + test_heapify_all(context, true); } -static int __init test_min_heap_init(void) +static void __init test_heapify_all_false(struct kunit *context) { - int err = 0; - - err += test_heapify_all(true); - err += test_heapify_all(false); - err += test_heap_push(true); - err += test_heap_push(false); - err += test_heap_pop_push(true); - err += test_heap_pop_push(false); - if (err) { - pr_err("test failed with %d errors\n", err); - return -EINVAL; - } - pr_info("test passed\n"); - return 0; + test_heapify_all(context, true); +} + +static void __init test_heap_push_true(struct kunit *context) +{ + test_heap_push(context, true); +} + +static void __init test_heap_push_false(struct kunit *context) +{ + test_heap_push(context, false); } -module_init(test_min_heap_init); -static void __exit test_min_heap_exit(void) +static void __init test_heap_pop_push_true(struct kunit *context) { - /* do nothing */ + test_heap_pop_push(context, true); } -module_exit(test_min_heap_exit); + +static void __init test_heap_pop_push_false(struct kunit *context) +{ + test_heap_pop_push(context, false); +} + +static struct kunit_case __refdata min_heap_test_cases[] = { + KUNIT_CASE(test_heapify_all_true), + KUNIT_CASE(test_heapify_all_false), + KUNIT_CASE(test_heap_push_true), + KUNIT_CASE(test_heap_push_false), + KUNIT_CASE(test_heap_pop_push_true), + KUNIT_CASE(test_heap_pop_push_false), + {} +}; + +static struct kunit_suite min_heap_test_suite = { + .name = "min-heap", + .test_cases = min_heap_test_cases, +}; + +kunit_test_suites(&min_heap_test_suite); MODULE_LICENSE("GPL"); base-commit: d2585f5164c298aaaed14c2c8d313cbe7bd5b253 -- 2.26.2

5 years, 1 month

2
1
0 0

[PATCH RFC V3 0/9] PKS: Add Protection Keys Supervisor (PKS) support RFC v3

by ira.weiny＠intel.com

From: Ira Weiny <ira.weiny(a)intel.com> This RFC series has been reviewed by Dave Hansen. Introduce a new page protection mechanism for supervisor pages, Protection Key Supervisor (PKS). 2 use cases for PKS are being developed, trusted keys and PMEM. Trusted keys is a newer use case which is still being explored. PMEM was submitted as part of the RFC (v2) series[1]. However, since then it was found that some callers of kmap() require a global implementation of PKS. Specifically some users of kmap() expect mappings to be available to all kernel threads. While global use of PKS is rare it needs to be included for correctness. Unfortunately the kmap() updates required a large patch series to make the needed changes at the various kmap() call sites so that patch set has been split out. Because the global PKS feature is only required for that use case it will be deferred to that set as well.[2] This patch set is being submitted as a precursor to both of the use cases. For an overview of the entire PKS ecosystem, a git tree including this series and the 2 use cases can be found here: https://github.com/weiny2/linux-kernel/tree/pks-rfc-v3 PKS enables protections on 'domains' of supervisor pages to limit supervisor mode access to those pages beyond the normal paging protections. PKS works in a similar fashion to user space pkeys, PKU. As with PKU, supervisor pkeys are checked in addition to normal paging protections and Access or Writes can be disabled via a MSR update without TLB flushes when permissions change. Also like PKU, a page mapping is assigned to a domain by setting pkey bits in the page table entry for that mapping. Access is controlled through a PKRS register which is updated via WRMSR/RDMSR. XSAVE is not supported for the PKRS MSR. Therefore the implementation saves/restores the MSR across context switches and during exceptions. Nested exceptions are supported by each exception getting a new PKS state. For consistent behavior with current paging protections, pkey 0 is reserved and configured to allow full access via the pkey mechanism, thus preserving the default paging protections on mappings with the default pkey value of 0. Other keys, (1-15) are allocated by an allocator which prepares us for key contention from day one. Kernel users should be prepared for the allocator to fail either because of key exhaustion or due to PKS not being supported on the arch and/or CPU instance. The following are key attributes of PKS. 1) Fast switching of permissions 1a) Prevents access without page table manipulations 1b) No TLB flushes required 2) Works on a per thread basis PKS is available with 4 and 5 level paging. Like PKRU it consumes 4 bits from the PTE to store the pkey within the entry. [1] https://lore.kernel.org/lkml/20200717072056.73134-1-ira.weiny@intel.com/ [2] https://github.com/weiny2/linux-kernel/commit/f10abb0f0d7b4e14f03fc8890313a… and a testing patch https://github.com/weiny2/linux-kernel/commit/2a8e0fc7654a7c69b243d628f63b0… Fenghua Yu (3): x86/fpu: Refactor arch_set_user_pkey_access() for PKS support x86/pks: Enable Protection Keys Supervisor (PKS) x86/pks: Add PKS kernel API Ira Weiny (6): x86/pkeys: Create pkeys_common.h x86/pks: Preserve the PKRS MSR on context switch x86/entry: Pass irqentry_state_t by reference x86/entry: Preserve PKRS MSR across exceptions x86/fault: Report the PKRS state on fault x86/pks: Add PKS test code Documentation/core-api/protection-keys.rst | 102 ++- arch/x86/Kconfig | 1 + arch/x86/entry/common.c | 57 +- arch/x86/include/asm/cpufeatures.h | 1 + arch/x86/include/asm/idtentry.h | 29 +- arch/x86/include/asm/msr-index.h | 1 + arch/x86/include/asm/pgtable.h | 13 +- arch/x86/include/asm/pgtable_types.h | 12 + arch/x86/include/asm/pkeys.h | 15 + arch/x86/include/asm/pkeys_common.h | 36 + arch/x86/include/asm/processor.h | 13 + arch/x86/include/uapi/asm/processor-flags.h | 2 + arch/x86/kernel/cpu/common.c | 17 + arch/x86/kernel/cpu/mce/core.c | 4 + arch/x86/kernel/fpu/xstate.c | 22 +- arch/x86/kernel/kvm.c | 4 +- arch/x86/kernel/nmi.c | 7 +- arch/x86/kernel/process.c | 21 + arch/x86/kernel/traps.c | 21 +- arch/x86/mm/fault.c | 86 ++- arch/x86/mm/pkeys.c | 188 +++++- include/linux/entry-common.h | 19 +- include/linux/pgtable.h | 4 + include/linux/pkeys.h | 23 +- kernel/entry/common.c | 28 +- lib/Kconfig.debug | 12 + lib/Makefile | 3 + lib/pks/Makefile | 3 + lib/pks/pks_test.c | 690 ++++++++++++++++++++ mm/Kconfig | 2 + tools/testing/selftests/x86/Makefile | 3 +- tools/testing/selftests/x86/test_pks.c | 65 ++ 32 files changed, 1376 insertions(+), 128 deletions(-) create mode 100644 arch/x86/include/asm/pkeys_common.h create mode 100644 lib/pks/Makefile create mode 100644 lib/pks/pks_test.c create mode 100644 tools/testing/selftests/x86/test_pks.c -- 2.28.0.rc0.12.gb6a658bd00c9

5 years, 1 month

5
46
0 0

[PATCHv5] selftests: rtnetlink: load fou module for kci_test_encap_fou() test

by Po-Hsu Lin

The kci_test_encap_fou() test from kci_test_encap() in rtnetlink.sh needs the fou module to work. Otherwise it will fail with: $ ip netns exec "$testns" ip fou add port 7777 ipproto 47 RTNETLINK answers: No such file or directory Error talking to the kernel Add the CONFIG_NET_FOU into the config file as well. Which needs at least to be set as a loadable module. Signed-off-by: Po-Hsu Lin <po-hsu.lin(a)canonical.com> --- tools/testing/selftests/net/config | 1 + tools/testing/selftests/net/rtnetlink.sh | 5 +++++ 2 files changed, 6 insertions(+) diff --git a/tools/testing/selftests/net/config b/tools/testing/selftests/net/config index 4364924..4d5df8e 100644 --- a/tools/testing/selftests/net/config +++ b/tools/testing/selftests/net/config @@ -33,3 +33,4 @@ CONFIG_KALLSYMS=y CONFIG_TRACEPOINTS=y CONFIG_NET_DROP_MONITOR=m CONFIG_NETDEVSIM=m +CONFIG_NET_FOU=m diff --git a/tools/testing/selftests/net/rtnetlink.sh b/tools/testing/selftests/net/rtnetlink.sh index 8a2fe6d..c9ce3df 100755 --- a/tools/testing/selftests/net/rtnetlink.sh +++ b/tools/testing/selftests/net/rtnetlink.sh @@ -520,6 +520,11 @@ kci_test_encap_fou() return $ksft_skip fi + if ! /sbin/modprobe -q -n fou; then + echo "SKIP: module fou is not found" + return $ksft_skip + fi + /sbin/modprobe -q fou ip -netns "$testns" fou add port 7777 ipproto 47 2>/dev/null if [ $? -ne 0 ];then echo "FAIL: can't add fou port 7777, skipping test" -- 2.7.4

5 years, 1 month

2
1
0 0

[PATCHv4] selftests: rtnetlink: load fou module for kci_test_encap_fou() test

by Po-Hsu Lin

The kci_test_encap_fou() test from kci_test_encap() in rtnetlink.sh needs the fou module to work. Otherwise it will fail with: $ ip netns exec "$testns" ip fou add port 7777 ipproto 47 RTNETLINK answers: No such file or directory Error talking to the kernel Add the CONFIG_NET_FOU into the config file as well. Which needs at least to be set as a loadable module. Signed-off-by: Po-Hsu Lin <po-hsu.lin(a)canonical.com> --- tools/testing/selftests/net/config | 1 + tools/testing/selftests/net/rtnetlink.sh | 5 +++++ 2 files changed, 6 insertions(+) diff --git a/tools/testing/selftests/net/config b/tools/testing/selftests/net/config index 3b42c06b..c5e50ab 100644 --- a/tools/testing/selftests/net/config +++ b/tools/testing/selftests/net/config @@ -31,3 +31,4 @@ CONFIG_NET_SCH_ETF=m CONFIG_NET_SCH_NETEM=y CONFIG_TEST_BLACKHOLE_DEV=m CONFIG_KALLSYMS=y +CONFIG_NET_FOU=m diff --git a/tools/testing/selftests/net/rtnetlink.sh b/tools/testing/selftests/net/rtnetlink.sh index 7c38a90..6f8f159 100755 --- a/tools/testing/selftests/net/rtnetlink.sh +++ b/tools/testing/selftests/net/rtnetlink.sh @@ -520,6 +520,11 @@ kci_test_encap_fou() return $ksft_skip fi + if ! /sbin/modprobe -q -n fou; then + echo "SKIP: module fou is not found" + return $ksft_skip + fi + /sbin/modprobe -q fou ip -netns "$testns" fou add port 7777 ipproto 47 2>/dev/null if [ $? -ne 0 ];then echo "FAIL: can't add fou port 7777, skipping test" -- 2.7.4

5 years, 1 month

2
2
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[GIT PULL] Kunit next update for Linux 5.10-rc1

by Shuah Khan

Hi Linus, Please pull the following Kunit next update for Linux 5.10-rc1. This Kunit update for Linux 5.10-rc1 consists of: - add Kunit to kernel_init() and remove KUnit from init calls entirely. This addresses the concern Kunit would not work correctly during late init phase. - add a linker section where KUnit can put references to its test suites. This patch is the first step in transitioning to dispatching all KUnit tests from a centralized executor rather than having each as its own separate late_initcall. - add a centralized executor to dispatch tests rather than relying on late_initcall to schedule each test suite separately. Centralized execution is for built-in tests only; modules will execute tests when loaded. - convert bitfield test to use KUnit framework - Documentation updates for naming guidelines and how kunit_test_suite() works. - add test plan to KUnit TAP format diff is attached. Please note that there is a conflict in lib/kunit/test.c between commit: 45dcbb6f5ef7 ("kunit: test: add test plan to KUnit TAP format") from the kunit-next tree and commit: e685acc91080 ("KUnit: KASAN Integration") from the akpm-current tree. (now in master) Stephen fixed this up in linux-next. Please let me know if you run into any problems. thanks, -- Shuah ---------------------------------------------------------------- The following changes since commit 9123e3a74ec7b934a4a099e98af6a61c2f80bbf5: Linux 5.9-rc1 (2020-08-16 13:04:57 -0700) are available in the Git repository at: git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest tags/linux-kselftest-kunit-5.10-rc1 for you to fetch changes up to 294a7f1613ee49a608361bd319519561c0ca7e72: lib: kunit: Fix compilation test when using TEST_BIT_FIELD_COMPILE (2020-10-16 13:25:14 -0600) ---------------------------------------------------------------- linux-kselftest-kunit-5.10-rc1 This Kunit update for Linux 5.10-rc1 consists of: - add Kunit to kernel_init() and remove KUnit from init calls entirely. This addresses the concern Kunit would not work correctly during late init phase. - add a linker section where KUnit can put references to its test suites. This patch is the first step in transitioning to dispatching all KUnit tests from a centralized executor rather than having each as its own separate late_initcall. - add a centralized executor to dispatch tests rather than relying on late_initcall to schedule each test suite separately. Centralized execution is for built-in tests only; modules will execute tests when loaded. - convert bitfield test to use KUnit framework - Documentation updates for naming guidelines and how kunit_test_suite() works. - add test plan to KUnit TAP format ---------------------------------------------------------------- Alan Maguire (1): kunit: test: create a single centralized executor for all tests Brendan Higgins (4): vmlinux.lds.h: add linker section for KUnit test suites init: main: add KUnit to kernel init kunit: test: add test plan to KUnit TAP format Documentation: kunit: add a brief blurb about kunit_test_suite David Gow (1): Documentation: kunit: Add naming guidelines Vitor Massaru Iha (2): lib: kunit: add bitfield test conversion to KUnit lib: kunit: Fix compilation test when using TEST_BIT_FIELD_COMPILE Documentation/dev-tools/kunit/index.rst | 1 + Documentation/dev-tools/kunit/style.rst | 205 +++++++++++++++++++++ Documentation/dev-tools/kunit/usage.rst | 5 + include/asm-generic/vmlinux.lds.h | 10 +- include/kunit/test.h | 76 +++++--- init/main.c | 4 + lib/Kconfig.debug | 23 ++- lib/Makefile | 2 +- lib/{test_bitfield.c => bitfield_kunit.c} | 90 ++++----- lib/kunit/Makefile | 3 +- lib/kunit/executor.c | 43 +++++ lib/kunit/test.c | 13 +- tools/testing/kunit/kunit_parser.py | 76 ++++++-- .../test_data/test_is_test_passed-all_passed.log | Bin 1562 -> 1567 bytes .../kunit/test_data/test_is_test_passed-crash.log | Bin 3016 -> 3021 bytes .../test_data/test_is_test_passed-failure.log | Bin 1700 -> 1705 bytes 16 files changed, 441 insertions(+), 110 deletions(-) create mode 100644 Documentation/dev-tools/kunit/style.rst rename lib/{test_bitfield.c => bitfield_kunit.c} (67%) create mode 100644 lib/kunit/executor.c ----------------------------------------------------------------

5 years, 1 month

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[PATCH AUTOSEL 5.4 57/80] selftests/bpf: Fix test_sysctl_loop{1, 2} failure due to clang change

by Sasha Levin

From: Yonghong Song <yhs(a)fb.com> [ Upstream commit 7fb5eefd76394cfefb380724a87ca40b47d44405 ] Andrii reported that with latest clang, when building selftests, we have error likes: error: progs/test_sysctl_loop1.c:23:16: in function sysctl_tcp_mem i32 (%struct.bpf_sysctl*): Looks like the BPF stack limit of 512 bytes is exceeded. Please move large on stack variables into BPF per-cpu array map. The error is triggered by the following LLVM patch: https://reviews.llvm.org/D87134 For example, the following code is from test_sysctl_loop1.c: static __always_inline int is_tcp_mem(struct bpf_sysctl *ctx) { volatile char tcp_mem_name[] = "net/ipv4/tcp_mem/very_very_very_very_long_pointless_string"; ... } Without the above LLVM patch, the compiler did optimization to load the string (59 bytes long) with 7 64bit loads, 1 8bit load and 1 16bit load, occupying 64 byte stack size. With the above LLVM patch, the compiler only uses 8bit loads, but subregister is 32bit. So stack requirements become 4 * 59 = 236 bytes. Together with other stuff on the stack, total stack size exceeds 512 bytes, hence compiler complains and quits. To fix the issue, removing "volatile" key word or changing "volatile" to "const"/"static const" does not work, the string is put in .rodata.str1.1 section, which libbpf did not process it and errors out with libbpf: elf: skipping unrecognized data section(6) .rodata.str1.1 libbpf: prog 'sysctl_tcp_mem': bad map relo against '.L__const.is_tcp_mem.tcp_mem_name' in section '.rodata.str1.1' Defining the string const as global variable can fix the issue as it puts the string constant in '.rodata' section which is recognized by libbpf. In the future, when libbpf can process '.rodata.str*.*' properly, the global definition can be changed back to local definition. Defining tcp_mem_name as a global, however, triggered a verifier failure. ./test_progs -n 7/21 libbpf: load bpf program failed: Permission denied libbpf: -- BEGIN DUMP LOG --- libbpf: invalid stack off=0 size=1 verification time 6975 usec stack depth 160+64 processed 889 insns (limit 1000000) max_states_per_insn 4 total_states 14 peak_states 14 mark_read 10 libbpf: -- END LOG -- libbpf: failed to load program 'sysctl_tcp_mem' libbpf: failed to load object 'test_sysctl_loop2.o' test_bpf_verif_scale:FAIL:114 #7/21 test_sysctl_loop2.o:FAIL This actually exposed a bpf program bug. In test_sysctl_loop{1,2}, we have code like const char tcp_mem_name[] = "<...long string...>"; ... char name[64]; ... for (i = 0; i < sizeof(tcp_mem_name); ++i) if (name[i] != tcp_mem_name[i]) return 0; In the above code, if sizeof(tcp_mem_name) > 64, name[i] access may be out of bound. The sizeof(tcp_mem_name) is 59 for test_sysctl_loop1.c and 79 for test_sysctl_loop2.c. Without promotion-to-global change, old compiler generates code where the overflowed stack access is actually filled with valid value, so hiding the bpf program bug. With promotion-to-global change, the code is different, more specifically, the previous loading constants to stack is gone, and "name" occupies stack[-64:0] and overflow access triggers a verifier error. To fix the issue, adjust "name" buffer size properly. Reported-by: Andrii Nakryiko <andriin(a)fb.com> Signed-off-by: Yonghong Song <yhs(a)fb.com> Signed-off-by: Alexei Starovoitov <ast(a)kernel.org> Acked-by: Andrii Nakryiko <andriin(a)fb.com> Link: https://lore.kernel.org/bpf/20200909171542.3673449-1-yhs@fb.com Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- tools/testing/selftests/bpf/progs/test_sysctl_loop1.c | 4 ++-- tools/testing/selftests/bpf/progs/test_sysctl_loop2.c | 4 ++-- 2 files changed, 4 insertions(+), 4 deletions(-) diff --git a/tools/testing/selftests/bpf/progs/test_sysctl_loop1.c b/tools/testing/selftests/bpf/progs/test_sysctl_loop1.c index d22e438198cf7..9af8822ece477 100644 --- a/tools/testing/selftests/bpf/progs/test_sysctl_loop1.c +++ b/tools/testing/selftests/bpf/progs/test_sysctl_loop1.c @@ -18,11 +18,11 @@ #define MAX_ULONG_STR_LEN 7 #define MAX_VALUE_STR_LEN (TCP_MEM_LOOPS * MAX_ULONG_STR_LEN) +const char tcp_mem_name[] = "net/ipv4/tcp_mem/very_very_very_very_long_pointless_string"; static __always_inline int is_tcp_mem(struct bpf_sysctl *ctx) { - volatile char tcp_mem_name[] = "net/ipv4/tcp_mem/very_very_very_very_long_pointless_string"; unsigned char i; - char name[64]; + char name[sizeof(tcp_mem_name)]; int ret; memset(name, 0, sizeof(name)); diff --git a/tools/testing/selftests/bpf/progs/test_sysctl_loop2.c b/tools/testing/selftests/bpf/progs/test_sysctl_loop2.c index cb201cbe11e77..55251046c9b73 100644 --- a/tools/testing/selftests/bpf/progs/test_sysctl_loop2.c +++ b/tools/testing/selftests/bpf/progs/test_sysctl_loop2.c @@ -18,11 +18,11 @@ #define MAX_ULONG_STR_LEN 7 #define MAX_VALUE_STR_LEN (TCP_MEM_LOOPS * MAX_ULONG_STR_LEN) +const char tcp_mem_name[] = "net/ipv4/tcp_mem/very_very_very_very_long_pointless_string_to_stress_byte_loop"; static __attribute__((noinline)) int is_tcp_mem(struct bpf_sysctl *ctx) { - volatile char tcp_mem_name[] = "net/ipv4/tcp_mem/very_very_very_very_long_pointless_string_to_stress_byte_loop"; unsigned char i; - char name[64]; + char name[sizeof(tcp_mem_name)]; int ret; memset(name, 0, sizeof(name)); -- 2.25.1

5 years, 1 month

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[PATCH AUTOSEL 5.8 073/101] selftests/bpf: Fix test_sysctl_loop{1, 2} failure due to clang change

by Sasha Levin

From: Yonghong Song <yhs(a)fb.com> [ Upstream commit 7fb5eefd76394cfefb380724a87ca40b47d44405 ] Andrii reported that with latest clang, when building selftests, we have error likes: error: progs/test_sysctl_loop1.c:23:16: in function sysctl_tcp_mem i32 (%struct.bpf_sysctl*): Looks like the BPF stack limit of 512 bytes is exceeded. Please move large on stack variables into BPF per-cpu array map. The error is triggered by the following LLVM patch: https://reviews.llvm.org/D87134 For example, the following code is from test_sysctl_loop1.c: static __always_inline int is_tcp_mem(struct bpf_sysctl *ctx) { volatile char tcp_mem_name[] = "net/ipv4/tcp_mem/very_very_very_very_long_pointless_string"; ... } Without the above LLVM patch, the compiler did optimization to load the string (59 bytes long) with 7 64bit loads, 1 8bit load and 1 16bit load, occupying 64 byte stack size. With the above LLVM patch, the compiler only uses 8bit loads, but subregister is 32bit. So stack requirements become 4 * 59 = 236 bytes. Together with other stuff on the stack, total stack size exceeds 512 bytes, hence compiler complains and quits. To fix the issue, removing "volatile" key word or changing "volatile" to "const"/"static const" does not work, the string is put in .rodata.str1.1 section, which libbpf did not process it and errors out with libbpf: elf: skipping unrecognized data section(6) .rodata.str1.1 libbpf: prog 'sysctl_tcp_mem': bad map relo against '.L__const.is_tcp_mem.tcp_mem_name' in section '.rodata.str1.1' Defining the string const as global variable can fix the issue as it puts the string constant in '.rodata' section which is recognized by libbpf. In the future, when libbpf can process '.rodata.str*.*' properly, the global definition can be changed back to local definition. Defining tcp_mem_name as a global, however, triggered a verifier failure. ./test_progs -n 7/21 libbpf: load bpf program failed: Permission denied libbpf: -- BEGIN DUMP LOG --- libbpf: invalid stack off=0 size=1 verification time 6975 usec stack depth 160+64 processed 889 insns (limit 1000000) max_states_per_insn 4 total_states 14 peak_states 14 mark_read 10 libbpf: -- END LOG -- libbpf: failed to load program 'sysctl_tcp_mem' libbpf: failed to load object 'test_sysctl_loop2.o' test_bpf_verif_scale:FAIL:114 #7/21 test_sysctl_loop2.o:FAIL This actually exposed a bpf program bug. In test_sysctl_loop{1,2}, we have code like const char tcp_mem_name[] = "<...long string...>"; ... char name[64]; ... for (i = 0; i < sizeof(tcp_mem_name); ++i) if (name[i] != tcp_mem_name[i]) return 0; In the above code, if sizeof(tcp_mem_name) > 64, name[i] access may be out of bound. The sizeof(tcp_mem_name) is 59 for test_sysctl_loop1.c and 79 for test_sysctl_loop2.c. Without promotion-to-global change, old compiler generates code where the overflowed stack access is actually filled with valid value, so hiding the bpf program bug. With promotion-to-global change, the code is different, more specifically, the previous loading constants to stack is gone, and "name" occupies stack[-64:0] and overflow access triggers a verifier error. To fix the issue, adjust "name" buffer size properly. Reported-by: Andrii Nakryiko <andriin(a)fb.com> Signed-off-by: Yonghong Song <yhs(a)fb.com> Signed-off-by: Alexei Starovoitov <ast(a)kernel.org> Acked-by: Andrii Nakryiko <andriin(a)fb.com> Link: https://lore.kernel.org/bpf/20200909171542.3673449-1-yhs@fb.com Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- tools/testing/selftests/bpf/progs/test_sysctl_loop1.c | 4 ++-- tools/testing/selftests/bpf/progs/test_sysctl_loop2.c | 4 ++-- 2 files changed, 4 insertions(+), 4 deletions(-) diff --git a/tools/testing/selftests/bpf/progs/test_sysctl_loop1.c b/tools/testing/selftests/bpf/progs/test_sysctl_loop1.c index 458b0d69133e4..553a282d816ab 100644 --- a/tools/testing/selftests/bpf/progs/test_sysctl_loop1.c +++ b/tools/testing/selftests/bpf/progs/test_sysctl_loop1.c @@ -18,11 +18,11 @@ #define MAX_ULONG_STR_LEN 7 #define MAX_VALUE_STR_LEN (TCP_MEM_LOOPS * MAX_ULONG_STR_LEN) +const char tcp_mem_name[] = "net/ipv4/tcp_mem/very_very_very_very_long_pointless_string"; static __always_inline int is_tcp_mem(struct bpf_sysctl *ctx) { - volatile char tcp_mem_name[] = "net/ipv4/tcp_mem/very_very_very_very_long_pointless_string"; unsigned char i; - char name[64]; + char name[sizeof(tcp_mem_name)]; int ret; memset(name, 0, sizeof(name)); diff --git a/tools/testing/selftests/bpf/progs/test_sysctl_loop2.c b/tools/testing/selftests/bpf/progs/test_sysctl_loop2.c index b2e6f9b0894d8..2b64bc563a12e 100644 --- a/tools/testing/selftests/bpf/progs/test_sysctl_loop2.c +++ b/tools/testing/selftests/bpf/progs/test_sysctl_loop2.c @@ -18,11 +18,11 @@ #define MAX_ULONG_STR_LEN 7 #define MAX_VALUE_STR_LEN (TCP_MEM_LOOPS * MAX_ULONG_STR_LEN) +const char tcp_mem_name[] = "net/ipv4/tcp_mem/very_very_very_very_long_pointless_string_to_stress_byte_loop"; static __attribute__((noinline)) int is_tcp_mem(struct bpf_sysctl *ctx) { - volatile char tcp_mem_name[] = "net/ipv4/tcp_mem/very_very_very_very_long_pointless_string_to_stress_byte_loop"; unsigned char i; - char name[64]; + char name[sizeof(tcp_mem_name)]; int ret; memset(name, 0, sizeof(name)); -- 2.25.1

5 years, 1 month

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[PATCH AUTOSEL 5.8 051/101] selftests/bpf: Fix overflow tests to reflect iter size increase

by Sasha Levin

From: Alan Maguire <alan.maguire(a)oracle.com> [ Upstream commit eb58bbf2e5c7917aa30bf8818761f26bbeeb2290 ] bpf iter size increase to PAGE_SIZE << 3 means overflow tests assuming page size need to be bumped also. Signed-off-by: Alan Maguire <alan.maguire(a)oracle.com> Signed-off-by: Alexei Starovoitov <ast(a)kernel.org> Link: https://lore.kernel.org/bpf/1601292670-1616-7-git-send-email-alan.maguire@o… Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- tools/testing/selftests/bpf/prog_tests/bpf_iter.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/tools/testing/selftests/bpf/prog_tests/bpf_iter.c b/tools/testing/selftests/bpf/prog_tests/bpf_iter.c index 87c29dde1cf96..669f195de2fa0 100644 --- a/tools/testing/selftests/bpf/prog_tests/bpf_iter.c +++ b/tools/testing/selftests/bpf/prog_tests/bpf_iter.c @@ -249,7 +249,7 @@ static void test_overflow(bool test_e2big_overflow, bool ret1) struct bpf_map_info map_info = {}; struct bpf_iter_test_kern4 *skel; struct bpf_link *link; - __u32 page_size; + __u32 iter_size; char *buf; skel = bpf_iter_test_kern4__open(); @@ -271,19 +271,19 @@ static void test_overflow(bool test_e2big_overflow, bool ret1) "map_creation failed: %s\n", strerror(errno))) goto free_map1; - /* bpf_seq_printf kernel buffer is one page, so one map + /* bpf_seq_printf kernel buffer is 8 pages, so one map * bpf_seq_write will mostly fill it, and the other map * will partially fill and then trigger overflow and need * bpf_seq_read restart. */ - page_size = sysconf(_SC_PAGE_SIZE); + iter_size = sysconf(_SC_PAGE_SIZE) << 3; if (test_e2big_overflow) { - skel->rodata->print_len = (page_size + 8) / 8; - expected_read_len = 2 * (page_size + 8); + skel->rodata->print_len = (iter_size + 8) / 8; + expected_read_len = 2 * (iter_size + 8); } else if (!ret1) { - skel->rodata->print_len = (page_size - 8) / 8; - expected_read_len = 2 * (page_size - 8); + skel->rodata->print_len = (iter_size - 8) / 8; + expected_read_len = 2 * (iter_size - 8); } else { skel->rodata->print_len = 1; expected_read_len = 2 * 8; -- 2.25.1

5 years, 1 month

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[PATCH AUTOSEL 5.9 078/111] selftests/bpf: Fix test_sysctl_loop{1, 2} failure due to clang change

by Sasha Levin

From: Yonghong Song <yhs(a)fb.com> [ Upstream commit 7fb5eefd76394cfefb380724a87ca40b47d44405 ] Andrii reported that with latest clang, when building selftests, we have error likes: error: progs/test_sysctl_loop1.c:23:16: in function sysctl_tcp_mem i32 (%struct.bpf_sysctl*): Looks like the BPF stack limit of 512 bytes is exceeded. Please move large on stack variables into BPF per-cpu array map. The error is triggered by the following LLVM patch: https://reviews.llvm.org/D87134 For example, the following code is from test_sysctl_loop1.c: static __always_inline int is_tcp_mem(struct bpf_sysctl *ctx) { volatile char tcp_mem_name[] = "net/ipv4/tcp_mem/very_very_very_very_long_pointless_string"; ... } Without the above LLVM patch, the compiler did optimization to load the string (59 bytes long) with 7 64bit loads, 1 8bit load and 1 16bit load, occupying 64 byte stack size. With the above LLVM patch, the compiler only uses 8bit loads, but subregister is 32bit. So stack requirements become 4 * 59 = 236 bytes. Together with other stuff on the stack, total stack size exceeds 512 bytes, hence compiler complains and quits. To fix the issue, removing "volatile" key word or changing "volatile" to "const"/"static const" does not work, the string is put in .rodata.str1.1 section, which libbpf did not process it and errors out with libbpf: elf: skipping unrecognized data section(6) .rodata.str1.1 libbpf: prog 'sysctl_tcp_mem': bad map relo against '.L__const.is_tcp_mem.tcp_mem_name' in section '.rodata.str1.1' Defining the string const as global variable can fix the issue as it puts the string constant in '.rodata' section which is recognized by libbpf. In the future, when libbpf can process '.rodata.str*.*' properly, the global definition can be changed back to local definition. Defining tcp_mem_name as a global, however, triggered a verifier failure. ./test_progs -n 7/21 libbpf: load bpf program failed: Permission denied libbpf: -- BEGIN DUMP LOG --- libbpf: invalid stack off=0 size=1 verification time 6975 usec stack depth 160+64 processed 889 insns (limit 1000000) max_states_per_insn 4 total_states 14 peak_states 14 mark_read 10 libbpf: -- END LOG -- libbpf: failed to load program 'sysctl_tcp_mem' libbpf: failed to load object 'test_sysctl_loop2.o' test_bpf_verif_scale:FAIL:114 #7/21 test_sysctl_loop2.o:FAIL This actually exposed a bpf program bug. In test_sysctl_loop{1,2}, we have code like const char tcp_mem_name[] = "<...long string...>"; ... char name[64]; ... for (i = 0; i < sizeof(tcp_mem_name); ++i) if (name[i] != tcp_mem_name[i]) return 0; In the above code, if sizeof(tcp_mem_name) > 64, name[i] access may be out of bound. The sizeof(tcp_mem_name) is 59 for test_sysctl_loop1.c and 79 for test_sysctl_loop2.c. Without promotion-to-global change, old compiler generates code where the overflowed stack access is actually filled with valid value, so hiding the bpf program bug. With promotion-to-global change, the code is different, more specifically, the previous loading constants to stack is gone, and "name" occupies stack[-64:0] and overflow access triggers a verifier error. To fix the issue, adjust "name" buffer size properly. Reported-by: Andrii Nakryiko <andriin(a)fb.com> Signed-off-by: Yonghong Song <yhs(a)fb.com> Signed-off-by: Alexei Starovoitov <ast(a)kernel.org> Acked-by: Andrii Nakryiko <andriin(a)fb.com> Link: https://lore.kernel.org/bpf/20200909171542.3673449-1-yhs@fb.com Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- tools/testing/selftests/bpf/progs/test_sysctl_loop1.c | 4 ++-- tools/testing/selftests/bpf/progs/test_sysctl_loop2.c | 4 ++-- 2 files changed, 4 insertions(+), 4 deletions(-) diff --git a/tools/testing/selftests/bpf/progs/test_sysctl_loop1.c b/tools/testing/selftests/bpf/progs/test_sysctl_loop1.c index 458b0d69133e4..553a282d816ab 100644 --- a/tools/testing/selftests/bpf/progs/test_sysctl_loop1.c +++ b/tools/testing/selftests/bpf/progs/test_sysctl_loop1.c @@ -18,11 +18,11 @@ #define MAX_ULONG_STR_LEN 7 #define MAX_VALUE_STR_LEN (TCP_MEM_LOOPS * MAX_ULONG_STR_LEN) +const char tcp_mem_name[] = "net/ipv4/tcp_mem/very_very_very_very_long_pointless_string"; static __always_inline int is_tcp_mem(struct bpf_sysctl *ctx) { - volatile char tcp_mem_name[] = "net/ipv4/tcp_mem/very_very_very_very_long_pointless_string"; unsigned char i; - char name[64]; + char name[sizeof(tcp_mem_name)]; int ret; memset(name, 0, sizeof(name)); diff --git a/tools/testing/selftests/bpf/progs/test_sysctl_loop2.c b/tools/testing/selftests/bpf/progs/test_sysctl_loop2.c index b2e6f9b0894d8..2b64bc563a12e 100644 --- a/tools/testing/selftests/bpf/progs/test_sysctl_loop2.c +++ b/tools/testing/selftests/bpf/progs/test_sysctl_loop2.c @@ -18,11 +18,11 @@ #define MAX_ULONG_STR_LEN 7 #define MAX_VALUE_STR_LEN (TCP_MEM_LOOPS * MAX_ULONG_STR_LEN) +const char tcp_mem_name[] = "net/ipv4/tcp_mem/very_very_very_very_long_pointless_string_to_stress_byte_loop"; static __attribute__((noinline)) int is_tcp_mem(struct bpf_sysctl *ctx) { - volatile char tcp_mem_name[] = "net/ipv4/tcp_mem/very_very_very_very_long_pointless_string_to_stress_byte_loop"; unsigned char i; - char name[64]; + char name[sizeof(tcp_mem_name)]; int ret; memset(name, 0, sizeof(name)); -- 2.25.1

5 years, 1 month

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[PATCH AUTOSEL 5.9 053/111] selftests/bpf: Fix overflow tests to reflect iter size increase

by Sasha Levin

From: Alan Maguire <alan.maguire(a)oracle.com> [ Upstream commit eb58bbf2e5c7917aa30bf8818761f26bbeeb2290 ] bpf iter size increase to PAGE_SIZE << 3 means overflow tests assuming page size need to be bumped also. Signed-off-by: Alan Maguire <alan.maguire(a)oracle.com> Signed-off-by: Alexei Starovoitov <ast(a)kernel.org> Link: https://lore.kernel.org/bpf/1601292670-1616-7-git-send-email-alan.maguire@o… Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- tools/testing/selftests/bpf/prog_tests/bpf_iter.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/tools/testing/selftests/bpf/prog_tests/bpf_iter.c b/tools/testing/selftests/bpf/prog_tests/bpf_iter.c index 7375d9a6d2427..a8924cbc7509d 100644 --- a/tools/testing/selftests/bpf/prog_tests/bpf_iter.c +++ b/tools/testing/selftests/bpf/prog_tests/bpf_iter.c @@ -331,7 +331,7 @@ static void test_overflow(bool test_e2big_overflow, bool ret1) struct bpf_map_info map_info = {}; struct bpf_iter_test_kern4 *skel; struct bpf_link *link; - __u32 page_size; + __u32 iter_size; char *buf; skel = bpf_iter_test_kern4__open(); @@ -353,19 +353,19 @@ static void test_overflow(bool test_e2big_overflow, bool ret1) "map_creation failed: %s\n", strerror(errno))) goto free_map1; - /* bpf_seq_printf kernel buffer is one page, so one map + /* bpf_seq_printf kernel buffer is 8 pages, so one map * bpf_seq_write will mostly fill it, and the other map * will partially fill and then trigger overflow and need * bpf_seq_read restart. */ - page_size = sysconf(_SC_PAGE_SIZE); + iter_size = sysconf(_SC_PAGE_SIZE) << 3; if (test_e2big_overflow) { - skel->rodata->print_len = (page_size + 8) / 8; - expected_read_len = 2 * (page_size + 8); + skel->rodata->print_len = (iter_size + 8) / 8; + expected_read_len = 2 * (iter_size + 8); } else if (!ret1) { - skel->rodata->print_len = (page_size - 8) / 8; - expected_read_len = 2 * (page_size - 8); + skel->rodata->print_len = (iter_size - 8) / 8; + expected_read_len = 2 * (iter_size - 8); } else { skel->rodata->print_len = 1; expected_read_len = 2 * 8; -- 2.25.1

5 years, 1 month

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[PATCH] fat: Add KUnit tests for checksums and timestamps

by David Gow

Add some basic sanity-check tests for the fat_checksum() function and the fat_time_unix2fat() and fat_time_fat2unix() functions. These unit tests verify these functions return correct output for a number of test inputs. These tests were inspored by -- and serve a similar purpose to -- the timestamp parsing KUnit tests in ext4[1]. [1]: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/fs/… Signed-off-by: David Gow <davidgow(a)google.com> --- fs/fat/Kconfig | 13 +++ fs/fat/Makefile | 2 + fs/fat/fat_test.c | 197 ++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 212 insertions(+) create mode 100644 fs/fat/fat_test.c diff --git a/fs/fat/Kconfig b/fs/fat/Kconfig index 66532a71e8fd..fdef03b79c69 100644 --- a/fs/fat/Kconfig +++ b/fs/fat/Kconfig @@ -115,3 +115,16 @@ config FAT_DEFAULT_UTF8 Say Y if you use UTF-8 encoding for file names, N otherwise. See <file:Documentation/filesystems/vfat.rst> for more information. + +config FAT_KUNIT_TEST + tristate "Unit Tests for FAT filesystems" if !KUNIT_ALL_TESTS + select FAT_FS + depends on KUNIT + default KUNIT_ALL_TESTS + help + This builds the FAT KUnit tests + + For more information on KUnit and unit tests in general, please refer + to the KUnit documentation in Documentation/dev-tools/kunit + + If unsure, say N diff --git a/fs/fat/Makefile b/fs/fat/Makefile index 70645ce2f7fc..2b034112690d 100644 --- a/fs/fat/Makefile +++ b/fs/fat/Makefile @@ -10,3 +10,5 @@ obj-$(CONFIG_MSDOS_FS) += msdos.o fat-y := cache.o dir.o fatent.o file.o inode.o misc.o nfs.o vfat-y := namei_vfat.o msdos-y := namei_msdos.o + +obj-$(CONFIG_FAT_KUNIT_TEST) += fat_test.o diff --git a/fs/fat/fat_test.c b/fs/fat/fat_test.c new file mode 100644 index 000000000000..c1b4348b9b3b --- /dev/null +++ b/fs/fat/fat_test.c @@ -0,0 +1,197 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * KUnit tests for FAT filesystems. + * + * Copyright (C) 2020 Google LLC. + * Author: David Gow <davidgow(a)google.com> + */ + +#include <kunit/test.h> + +#include "fat.h" + +static void fat_checksum_test(struct kunit *test) +{ + /* With no extension. */ + KUNIT_EXPECT_EQ(test, fat_checksum("VMLINUX "), 44); + /* With 3-letter extension. */ + KUNIT_EXPECT_EQ(test, fat_checksum("README TXT"), 115); + /* With short (1-letter) extension. */ + KUNIT_EXPECT_EQ(test, fat_checksum("ABCDEFGHA "), 98); +} + + +struct fat_timestamp_testcase { + const char *name; + struct timespec64 ts; + __le16 time; + __le16 date; + u8 cs; + int time_offset; +}; + +const static struct fat_timestamp_testcase time_test_cases[] = { + { + .name = "Earliest possible UTC (1980-01-01 00:00:00)", + .ts = {.tv_sec = 315532800LL, .tv_nsec = 0L}, + .time = 0, + .date = 33, + .cs = 0, + .time_offset = 0, + }, + { + .name = "Latest possible UTC (2107-12-31 23:59:58)", + .ts = {.tv_sec = 4354819198LL, .tv_nsec = 0L}, + .time = 49021, + .date = 65439, + .cs = 0, + .time_offset = 0, + }, + { + .name = "Earliest possible (UTC-11) (== 1979-12-31 13:00:00 UTC)", + .ts = {.tv_sec = 315493200LL, .tv_nsec = 0L}, + .time = 0, + .date = 33, + .cs = 0, + .time_offset = 11 * 60, + }, + { + .name = "Latest possible (UTC+11) (== 2108-01-01 10:59:58 UTC)", + .ts = {.tv_sec = 4354858798LL, .tv_nsec = 0L}, + .time = 49021, + .date = 65439, + .cs = 0, + .time_offset = -11 * 60, + }, + { + .name = "Leap Day / Year (1996-02-29 00:00:00)", + .ts = {.tv_sec = 825552000LL, .tv_nsec = 0L}, + .time = 0, + .date = 8285, + .cs = 0, + .time_offset = 0, + }, + { + .name = "Year 2000 is leap year (2000-02-29 00:00:00)", + .ts = {.tv_sec = 951782400LL, .tv_nsec = 0L}, + .time = 0, + .date = 10333, + .cs = 0, + .time_offset = 0, + }, + { + .name = "Year 2100 not leap year (2100-03-01 00:00:00)", + .ts = {.tv_sec = 4107542400LL, .tv_nsec = 0L}, + .time = 0, + .date = 61537, + .cs = 0, + .time_offset = 0, + }, + { + .name = "Leap year + timezone UTC+1 (== 2004-02-29 00:30:00 UTC)", + .ts = {.tv_sec = 1078014600LL, .tv_nsec = 0L}, + .time = 48064, + .date = 12380, + .cs = 0, + .time_offset = -60, + }, + { + .name = "Leap year + timezone UTC-1 (== 2004-02-29 23:30:00 UTC)", + .ts = {.tv_sec = 1078097400LL, .tv_nsec = 0L}, + .time = 960, + .date = 12385, + .cs = 0, + .time_offset = 60, + }, + { + .name = "VFAT odd-second resolution (1999-12-31 23:59:59)", + .ts = {.tv_sec = 946684799LL, .tv_nsec = 0L}, + .time = 49021, + .date = 10143, + .cs = 100, + .time_offset = 0, + }, + { + .name = "VFAT 10ms resolution (1980-01-01 00:00:00:0010)", + .ts = {.tv_sec = 315532800LL, .tv_nsec = 10000000L}, + .time = 0, + .date = 33, + .cs = 1, + .time_offset = 0, + }, +}; + +static void fat_time_fat2unix_test(struct kunit *test) +{ + struct msdos_sb_info fake_sb; + int i; + struct timespec64 ts; + + for (i = 0; i < ARRAY_SIZE(time_test_cases); ++i) { + fake_sb.options.tz_set = 1; + fake_sb.options.time_offset = time_test_cases[i].time_offset; + + fat_time_fat2unix(&fake_sb, &ts, + time_test_cases[i].time, + time_test_cases[i].date, + time_test_cases[i].cs); + KUNIT_EXPECT_EQ_MSG(test, + time_test_cases[i].ts.tv_sec, + ts.tv_sec, + "Timestamp mismatch (seconds) in case \"%s\"\n", + time_test_cases[i].name); + KUNIT_EXPECT_EQ_MSG(test, + time_test_cases[i].ts.tv_nsec, + ts.tv_nsec, + "Timestamp mismatch (nanoseconds) in case \"%s\"\n", + time_test_cases[i].name); + } +} + +static void fat_time_unix2fat_test(struct kunit *test) +{ + struct msdos_sb_info fake_sb; + int i; + __le16 date, time; + u8 cs; + + for (i = 0; i < ARRAY_SIZE(time_test_cases); ++i) { + fake_sb.options.tz_set = 1; + fake_sb.options.time_offset = time_test_cases[i].time_offset; + + fat_time_unix2fat(&fake_sb, &time_test_cases[i].ts, + &time, &date, &cs); + KUNIT_EXPECT_EQ_MSG(test, + time_test_cases[i].time, + time, + "Time mismatch in case \"%s\"\n", + time_test_cases[i].name); + KUNIT_EXPECT_EQ_MSG(test, + time_test_cases[i].date, + date, + "Date mismatch in case \"%s\"\n", + time_test_cases[i].name); + KUNIT_EXPECT_EQ_MSG(test, + time_test_cases[i].cs, + cs, + "Centisecond mismatch in case \"%s\"\n", + time_test_cases[i].name); + } +} + +static struct kunit_case fat_test_cases[] = { + KUNIT_CASE(fat_checksum_test), + KUNIT_CASE(fat_time_fat2unix_test), + KUNIT_CASE(fat_time_unix2fat_test), + {}, +}; + +static struct kunit_suite fat_test_suite = { + .name = "fat_test", + .test_cases = fat_test_cases, +}; + +kunit_test_suites(&fat_test_suite); + +MODULE_LICENSE("GPL v2"); + -- 2.29.0.rc1.297.gfa9743e501-goog

5 years, 1 month

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[PATCH v2 1/3] lib/list_kunit: Follow new file name convention for KUnit tests

by Andy Shevchenko

Follow new file name convention for the KUnit tests. Since we have lib/*test*.c in a few variations, use 'kunit' suffix to distinguish usual test cases with KUnit-based ones. Cc: David Gow <davidgow(a)google.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko(a)linux.intel.com> --- v2: followed new convention MAINTAINERS | 2 +- lib/Makefile | 2 +- lib/{list-test.c => list_kunit.c} | 0 3 files changed, 2 insertions(+), 2 deletions(-) rename lib/{list-test.c => list_kunit.c} (100%) diff --git a/MAINTAINERS b/MAINTAINERS index 4538378de6f5..20facbca9388 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -10188,7 +10188,7 @@ M: David Gow <davidgow(a)google.com> L: linux-kselftest(a)vger.kernel.org L: kunit-dev(a)googlegroups.com S: Maintained -F: lib/list-test.c +F: lib/list_kunit.c LIVE PATCHING M: Josh Poimboeuf <jpoimboe(a)redhat.com> diff --git a/lib/Makefile b/lib/Makefile index 5ca03ba6ee45..1a5e6a6ebe8d 100644 --- a/lib/Makefile +++ b/lib/Makefile @@ -350,6 +350,6 @@ obj-$(CONFIG_PLDMFW) += pldmfw/ # KUnit tests obj-$(CONFIG_BITFIELD_KUNIT) += bitfield_kunit.o -obj-$(CONFIG_LIST_KUNIT_TEST) += list-test.o +obj-$(CONFIG_LIST_KUNIT_TEST) += list_kunit.o obj-$(CONFIG_LINEAR_RANGES_TEST) += test_linear_ranges.o obj-$(CONFIG_BITS_TEST) += test_bits.o diff --git a/lib/list-test.c b/lib/list_kunit.c similarity index 100% rename from lib/list-test.c rename to lib/list_kunit.c -- 2.28.0

5 years, 1 month

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[PATCH v1] i2c: aspeed: add KUnit tests for clock parameters

by Brendan Higgins

Add KUnit tests for Aspeed I2C driver to test setting clock divider registers given an input clock speed. I wrote this test a while ago and it found a bug in the Aspeed I2C driver a couple years ago[1]. Link[1]: https://lore.kernel.org/patchwork/patch/989312/ Signed-off-by: Brendan Higgins <brendanhiggins(a)google.com> --- MAINTAINERS | 1 + drivers/i2c/busses/Kconfig | 18 ++- drivers/i2c/busses/i2c-aspeed-test.c | 218 +++++++++++++++++++++++++++ drivers/i2c/busses/i2c-aspeed.c | 4 + 4 files changed, 240 insertions(+), 1 deletion(-) create mode 100644 drivers/i2c/busses/i2c-aspeed-test.c diff --git a/MAINTAINERS b/MAINTAINERS index deaafb617361c..683382df2434a 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -1653,6 +1653,7 @@ L: openbmc(a)lists.ozlabs.org (moderated for non-subscribers) S: Maintained F: Documentation/devicetree/bindings/i2c/i2c-aspeed.txt F: Documentation/devicetree/bindings/interrupt-controller/aspeed,ast2400-i2c-ic.txt +F: drivers/i2c/busses/i2c-aspeed-test.c F: drivers/i2c/busses/i2c-aspeed.c F: drivers/irqchip/irq-aspeed-i2c-ic.c diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig index 293e7a0760e77..0f12090f9fe26 100644 --- a/drivers/i2c/busses/Kconfig +++ b/drivers/i2c/busses/Kconfig @@ -379,7 +379,7 @@ config I2C_ALTERA config I2C_ASPEED tristate "Aspeed I2C Controller" - depends on ARCH_ASPEED || COMPILE_TEST + depends on ARCH_ASPEED || COMPILE_TEST || KUNIT=y help If you say yes to this option, support will be included for the Aspeed I2C controller. @@ -387,6 +387,22 @@ config I2C_ASPEED This driver can also be built as a module. If so, the module will be called i2c-aspeed. +config I2C_ASPEED_KUNIT_TEST + bool "Aspeed I2C Controller KUnit test" + depends on I2C_ASPEED=y + help + This builds the Aspeed I2C KUnit tests. + + KUnit tests run during boot and output the results to the debug log + in TAP format (https://testanything.org/). Only useful for kernel devs + running KUnit test harness and are not for inclusion into a + production build. + + For more information on KUnit and unit tests in general please refer + to the KUnit documentation in Documentation/dev-tools/kunit/. + + If unsure, say N. + config I2C_AT91 tristate "Atmel AT91 I2C Two-Wire interface (TWI)" depends on ARCH_AT91 || COMPILE_TEST diff --git a/drivers/i2c/busses/i2c-aspeed-test.c b/drivers/i2c/busses/i2c-aspeed-test.c new file mode 100644 index 0000000000000..93e73af95b645 --- /dev/null +++ b/drivers/i2c/busses/i2c-aspeed-test.c @@ -0,0 +1,218 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Aspeed 24XX/25XX I2C Controller KUnit tests. + * + * Copyright (C) 2020 Google LLC. + */ + +#include <kunit/test.h> + +#define ASPEED_I2C_MAX_BASE_DIVISOR (1 << ASPEED_I2CD_TIME_BASE_DIVISOR_MASK) +#define ASPEED_I2C_24XX_CLK_HIGH_LOW_MASK GENMASK(2, 0) +#define ASPEED_I2C_24XX_CLK_HIGH_LOW_MAX ((ASPEED_I2C_24XX_CLK_HIGH_LOW_MASK + 1) * 2) +#define ASPEED_I2C_24XX_MAX_DIVISOR \ + (ASPEED_I2C_MAX_BASE_DIVISOR * ASPEED_I2C_24XX_CLK_HIGH_LOW_MAX) +#define ASPEED_I2C_25XX_CLK_HIGH_LOW_MASK GENMASK(3, 0) +#define ASPEED_I2C_25XX_CLK_HIGH_LOW_MAX ((ASPEED_I2C_25XX_CLK_HIGH_LOW_MASK + 1) * 2) +#define ASPEED_I2C_25XX_MAX_DIVISOR \ + (ASPEED_I2C_MAX_BASE_DIVISOR * ASPEED_I2C_25XX_CLK_HIGH_LOW_MAX) + +static u32 aspeed_i2c_get_base_clk(u32 reg_val) +{ + return reg_val & ASPEED_I2CD_TIME_BASE_DIVISOR_MASK; +} + +static u32 aspeed_i2c_get_clk_high(u32 reg_val) +{ + return (reg_val & ASPEED_I2CD_TIME_SCL_HIGH_MASK) >> + ASPEED_I2CD_TIME_SCL_HIGH_SHIFT; +} + +static u32 aspeed_i2c_get_clk_low(u32 reg_val) +{ + return (reg_val & ASPEED_I2CD_TIME_SCL_LOW_MASK) >> + ASPEED_I2CD_TIME_SCL_LOW_SHIFT; +} + +static void aspeed_i2c_get_clk_reg_val_params_test(struct kunit *test, + u32 (*get_clk_reg_val)(struct device *, u32), + u32 divisor, + u32 base_clk, + u32 clk_high, + u32 clk_low) +{ + u32 reg_val; + + reg_val = get_clk_reg_val(NULL, divisor); + KUNIT_ASSERT_EQ(test, + (u32)(reg_val & ~(ASPEED_I2CD_TIME_SCL_HIGH_MASK | + ASPEED_I2CD_TIME_SCL_LOW_MASK | + ASPEED_I2CD_TIME_BASE_DIVISOR_MASK)), + (u32)0); + KUNIT_EXPECT_EQ(test, aspeed_i2c_get_base_clk(reg_val), base_clk); + KUNIT_EXPECT_EQ(test, aspeed_i2c_get_clk_high(reg_val), clk_high); + KUNIT_EXPECT_EQ(test, aspeed_i2c_get_clk_low(reg_val), clk_low); +} + +static void aspeed_i2c_24xx_get_clk_reg_val_params_test(struct kunit *test, + u32 divisor, + u32 base_clk, + u32 clk_high, + u32 clk_low) +{ + aspeed_i2c_get_clk_reg_val_params_test(test, + aspeed_i2c_24xx_get_clk_reg_val, + divisor, + base_clk, + clk_high, + clk_low); +} + +/* + * Verify that smallest possible divisors are handled correctly. + */ +static void aspeed_i2c_24xx_get_clk_reg_val_test_min(struct kunit *test) +{ + aspeed_i2c_24xx_get_clk_reg_val_params_test(test, 0, 0, 0, 0); + aspeed_i2c_24xx_get_clk_reg_val_params_test(test, 1, 0, 0, 0); +} + +/* + * Verify that largest possible divisors are handled correctly. + */ +static void aspeed_i2c_24xx_get_clk_reg_val_test_max(struct kunit *test) +{ + aspeed_i2c_24xx_get_clk_reg_val_params_test(test, + ASPEED_I2C_24XX_MAX_DIVISOR, + ASPEED_I2CD_TIME_BASE_DIVISOR_MASK, + ASPEED_I2C_24XX_CLK_HIGH_LOW_MASK, + ASPEED_I2C_24XX_CLK_HIGH_LOW_MASK); + aspeed_i2c_24xx_get_clk_reg_val_params_test(test, + ASPEED_I2C_24XX_MAX_DIVISOR + 1, + ASPEED_I2CD_TIME_BASE_DIVISOR_MASK, + ASPEED_I2C_24XX_CLK_HIGH_LOW_MASK, + ASPEED_I2C_24XX_CLK_HIGH_LOW_MASK); + aspeed_i2c_24xx_get_clk_reg_val_params_test(test, + U32_MAX, + ASPEED_I2CD_TIME_BASE_DIVISOR_MASK, + ASPEED_I2C_24XX_CLK_HIGH_LOW_MASK, + ASPEED_I2C_24XX_CLK_HIGH_LOW_MASK); +} + +/* + * Spot check values from the datasheet table. + */ +static void aspeed_i2c_24xx_get_clk_reg_val_test_datasheet(struct kunit *test) +{ + aspeed_i2c_24xx_get_clk_reg_val_params_test(test, 6, 0, 2, 2); + aspeed_i2c_24xx_get_clk_reg_val_params_test(test, 7, 0, 3, 2); + aspeed_i2c_24xx_get_clk_reg_val_params_test(test, 16, 0, 7, 7); + aspeed_i2c_24xx_get_clk_reg_val_params_test(test, 18, 1, 4, 3); + aspeed_i2c_24xx_get_clk_reg_val_params_test(test, 491520, 15, 7, 6); + aspeed_i2c_24xx_get_clk_reg_val_params_test(test, 524288, 15, 7, 7); +} + +/* + * Check that a divisor that cannot be represented exactly is rounded up to the + * next divisor that can be represented. + */ +static void aspeed_i2c_24xx_get_clk_reg_val_test_round_up(struct kunit *test) +{ + aspeed_i2c_24xx_get_clk_reg_val_params_test(test, 16, 0, 7, 7); + aspeed_i2c_24xx_get_clk_reg_val_params_test(test, 17, 1, 4, 3); + aspeed_i2c_24xx_get_clk_reg_val_params_test(test, 18, 1, 4, 3); + aspeed_i2c_24xx_get_clk_reg_val_params_test(test, 19, 1, 4, 4); + aspeed_i2c_24xx_get_clk_reg_val_params_test(test, 491519, 15, 7, 6); + aspeed_i2c_24xx_get_clk_reg_val_params_test(test, 491520, 15, 7, 6); + aspeed_i2c_24xx_get_clk_reg_val_params_test(test, 524287, 15, 7, 7); + aspeed_i2c_24xx_get_clk_reg_val_params_test(test, 524288, 15, 7, 7); +} + +static void aspeed_i2c_25xx_get_clk_reg_val_params_test(struct kunit *test, + u32 divisor, + u32 base_clk, + u32 clk_high, + u32 clk_low) +{ + aspeed_i2c_get_clk_reg_val_params_test(test, + aspeed_i2c_25xx_get_clk_reg_val, + divisor, + base_clk, + clk_high, + clk_low); +} + +/* + * Verify that smallest possible divisors are handled correctly. + */ +static void aspeed_i2c_25xx_get_clk_reg_val_test_min(struct kunit *test) +{ + aspeed_i2c_25xx_get_clk_reg_val_params_test(test, 0, 0, 0, 0); + aspeed_i2c_25xx_get_clk_reg_val_params_test(test, 1, 0, 0, 0); +} + +/* + * Verify that largest possible divisors are handled correctly. + */ +static void aspeed_i2c_25xx_get_clk_reg_val_test_max(struct kunit *test) +{ + aspeed_i2c_25xx_get_clk_reg_val_params_test(test, + ASPEED_I2C_25XX_MAX_DIVISOR, + ASPEED_I2CD_TIME_BASE_DIVISOR_MASK, + ASPEED_I2C_25XX_CLK_HIGH_LOW_MASK, + ASPEED_I2C_25XX_CLK_HIGH_LOW_MASK); + aspeed_i2c_25xx_get_clk_reg_val_params_test(test, + ASPEED_I2C_25XX_MAX_DIVISOR + 1, + ASPEED_I2CD_TIME_BASE_DIVISOR_MASK, + ASPEED_I2C_25XX_CLK_HIGH_LOW_MASK, + ASPEED_I2C_25XX_CLK_HIGH_LOW_MASK); + aspeed_i2c_25xx_get_clk_reg_val_params_test(test, + U32_MAX, + ASPEED_I2CD_TIME_BASE_DIVISOR_MASK, + ASPEED_I2C_25XX_CLK_HIGH_LOW_MASK, + ASPEED_I2C_25XX_CLK_HIGH_LOW_MASK); +} + +/* + * Spot check values from the datasheet table. + */ +static void aspeed_i2c_25xx_get_clk_reg_val_test_datasheet(struct kunit *test) +{ + aspeed_i2c_25xx_get_clk_reg_val_params_test(test, 6, 0, 2, 2); + aspeed_i2c_25xx_get_clk_reg_val_params_test(test, 7, 0, 3, 2); + aspeed_i2c_25xx_get_clk_reg_val_params_test(test, 32, 0, 15, 15); + aspeed_i2c_25xx_get_clk_reg_val_params_test(test, 34, 1, 8, 7); + aspeed_i2c_25xx_get_clk_reg_val_params_test(test, 2048, 6, 15, 15); + aspeed_i2c_25xx_get_clk_reg_val_params_test(test, 2176, 7, 8, 7); + aspeed_i2c_25xx_get_clk_reg_val_params_test(test, 3072, 7, 11, 11); +} + +/* + * Check that a divisor that cannot be represented exactly is rounded up to the + * next divisor that can be represented. + */ +static void aspeed_i2c_25xx_get_clk_reg_val_test_round_up(struct kunit *test) +{ + aspeed_i2c_25xx_get_clk_reg_val_params_test(test, 2047, 6, 15, 15); + aspeed_i2c_25xx_get_clk_reg_val_params_test(test, 2048, 6, 15, 15); + aspeed_i2c_25xx_get_clk_reg_val_params_test(test, 2175, 7, 8, 7); + aspeed_i2c_25xx_get_clk_reg_val_params_test(test, 2176, 7, 8, 7); +} + +static struct kunit_case aspeed_i2c_test_cases[] = { + KUNIT_CASE(aspeed_i2c_24xx_get_clk_reg_val_test_min), + KUNIT_CASE(aspeed_i2c_24xx_get_clk_reg_val_test_max), + KUNIT_CASE(aspeed_i2c_24xx_get_clk_reg_val_test_datasheet), + KUNIT_CASE(aspeed_i2c_24xx_get_clk_reg_val_test_round_up), + KUNIT_CASE(aspeed_i2c_25xx_get_clk_reg_val_test_min), + KUNIT_CASE(aspeed_i2c_25xx_get_clk_reg_val_test_max), + KUNIT_CASE(aspeed_i2c_25xx_get_clk_reg_val_test_datasheet), + KUNIT_CASE(aspeed_i2c_25xx_get_clk_reg_val_test_round_up), + {}, +}; + +static struct kunit_suite aspeed_i2c_test = { + .name = "aspeed-i2c", + .test_cases = aspeed_i2c_test_cases, +}; +kunit_test_suite(aspeed_i2c_test); diff --git a/drivers/i2c/busses/i2c-aspeed.c b/drivers/i2c/busses/i2c-aspeed.c index 31268074c4221..68c460b7d4def 100644 --- a/drivers/i2c/busses/i2c-aspeed.c +++ b/drivers/i2c/busses/i2c-aspeed.c @@ -1082,6 +1082,10 @@ static struct platform_driver aspeed_i2c_bus_driver = { }; module_platform_driver(aspeed_i2c_bus_driver); +#ifdef CONFIG_I2C_ASPEED_KUNIT_TEST +#include "i2c-aspeed-test.c" +#endif /* CONFIG_I2C_ASPEED_KUNIT_TEST */ + MODULE_AUTHOR("Brendan Higgins <brendanhiggins(a)google.com>"); MODULE_DESCRIPTION("Aspeed I2C Bus Driver"); MODULE_LICENSE("GPL v2"); base-commit: 1abdd39f14b25dd2d69096b624a4f86f158a9feb -- 2.29.0.rc1.297.gfa9743e501-goog

5 years, 1 month

1
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[PATCH] lib: kunit: Fix compilation test when using TEST_BIT_FIELD_COMPILE

by Vitor Massaru Iha

A build condition was missing around a compilation test, this compilation test comes from the original test_bitfield code. And removed unnecessary code for this test. Fixes: d2585f5164c2 ("lib: kunit: add bitfield test conversion to KUnit") Signed-off-by: Vitor Massaru Iha <vitor(a)massaru.org> Link: https://lore.kernel.org/linux-next/20201015163056.56fcc835@canb.auug.org.au/ --- lib/bitfield_kunit.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/lib/bitfield_kunit.c b/lib/bitfield_kunit.c index d63a2be5aff8..1473d8b4bf0f 100644 --- a/lib/bitfield_kunit.c +++ b/lib/bitfield_kunit.c @@ -125,7 +125,7 @@ static void __init test_bitfields_variables(struct kunit *context) CHECK(u64, 0x0000001f8000000ull); } - +#ifdef TEST_BITFIELD_COMPILE static void __init test_bitfields_compile(struct kunit *context) { /* these should fail compilation */ @@ -135,13 +135,11 @@ static void __init test_bitfields_compile(struct kunit *context) /* this should at least give a warning */ u16_encode_bits(0, 0x60000); } +#endif static struct kunit_case __refdata bitfields_test_cases[] = { KUNIT_CASE(test_bitfields_constants), KUNIT_CASE(test_bitfields_variables), -#ifdef TEST_BITFIELD_COMPILE - KUNIT_CASE(test_bitfields_compile), -#endif {} }; base-commit: d2585f5164c298aaaed14c2c8d313cbe7bd5b253 -- 2.26.2

5 years, 1 month

3
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[GIT PULL] Kunit fixes update for Linux 5.10-rc1

by Shuah Khan

Hi Linus, Please pull the following Kunit fixes update for Linux 5.10-rc1 This Kunit fixes update consists of several kunit tool bug fixes in flag handling, run outside kernel tree, make errors, and generating results. diff is attached. thanks, -- Shuah ---------------------------------------------------------------- The following changes since commit 9123e3a74ec7b934a4a099e98af6a61c2f80bbf5: Linux 5.9-rc1 (2020-08-16 13:04:57 -0700) are available in the Git repository at: git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest tags/linux-kselftest-kunit-fixes-5.10-rc1 for you to fetch changes up to 1abdd39f14b25dd2d69096b624a4f86f158a9feb: kunit: tool: fix display of make errors (2020-10-09 14:04:09 -0600) ---------------------------------------------------------------- linux-kselftest-kunit-fixes-5.10-rc1 This Kunit fixes update consists of several kunit tool bug fixes in flag handling, run outside kernel tree, make errors, and generating results. ---------------------------------------------------------------- Brendan Higgins (3): kunit: tool: fix running kunit_tool from outside kernel tree kunit: tool: fix --alltests flag kunit: tool: handle when .kunit exists but .kunitconfig does not Daniel Latypov (1): kunit: tool: fix display of make errors Heidi Fahim (1): kunit: tool: allow generating test results in JSON tools/testing/kunit/configs/broken_on_uml.config | 1 + tools/testing/kunit/kunit.py | 58 +++++++++++++++------- tools/testing/kunit/kunit_json.py | 63 ++++++++++++++++++++++++ tools/testing/kunit/kunit_kernel.py | 27 +++++----- tools/testing/kunit/kunit_tool_test.py | 33 +++++++++++++ 5 files changed, 154 insertions(+), 28 deletions(-) create mode 100644 tools/testing/kunit/kunit_json.py ----------------------------------------------------------------

5 years, 1 month

2
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[GIT PULL] Kselftest next update for Linux 5.10-rc1

by Shuah Khan

Hi Linus, Please pull the following Kselftest next update for Linux 5.10-rc1 This kselftest update for Linux 5.10-rc1 consists of enhancements to -- speed up headers_install done during selftest build -- add generic make nesting support -- add support to select individual tests: - Selftests build/install generates run_kselftest.sh script to run selftests on a target system. Currently the script doesn't have support for selecting individual tests. Add support for it. With this enhancement, user can select test collections (or tests) individually. e.g: run_kselftest.sh -c seccomp -t timers:posix_timers -t timers:nanosleep Additionally adds a way to list all known tests with "-l", usage with "-h", and perform a dry run without running tests with "-n". diff is attached. thanks, -- Shuah ---------------------------------------------------------------- The following changes since commit 9123e3a74ec7b934a4a099e98af6a61c2f80bbf5: Linux 5.9-rc1 (2020-08-16 13:04:57 -0700) are available in the Git repository at: git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest tags/linux-kselftest-next-5.10-rc1 for you to fetch changes up to 4c8511317b4ec75cc3868f80a7b9fddb8322e512: doc: dev-tools: kselftest.rst: Update examples and paths (2020-10-07 07:59:24 -0600) ---------------------------------------------------------------- linux-kselftest-next-5.10-rc1 This kselftest update for Linux 5.10-rc1 consists of enhancements to -- speed up headers_install done during selftest build -- add generic make nesting support -- add support to select individual tests: - Selftests build/install generates run_kselftest.sh script to run selftests on a target system. Currently the script doesn't have support for selecting individual tests. Add support for it. With this enhancement, user can select test collections (or tests) individually. e.g: run_kselftest.sh -c seccomp -t timers:posix_timers -t timers:nanosleep Additionally adds a way to list all known tests with "-l", usage with "-h", and perform a dry run without running tests with "-n". ---------------------------------------------------------------- Denys Vlasenko (1): selftests: use "$(MAKE)" instead of "make" for headers_install Gabriel Krisman Bertazi (1): selftests: Add missing gitignore entries Greg Thelen (1): selftests: more general make nesting support Kees Cook (3): selftests: Extract run_kselftest.sh and generate stand-alone test list selftests/run_kselftest.sh: Make each test individually selectable doc: dev-tools: kselftest.rst: Update examples and paths Documentation/dev-tools/kselftest.rst | 35 +++++++---- tools/testing/selftests/Makefile | 34 ++++------ tools/testing/selftests/firmware/.gitignore | 2 + tools/testing/selftests/lib.mk | 9 ++- tools/testing/selftests/netfilter/.gitignore | 2 + tools/testing/selftests/ptrace/.gitignore | 1 + tools/testing/selftests/run_kselftest.sh | 93 ++++++++++++++++++++++++++++ 7 files changed, 135 insertions(+), 41 deletions(-) create mode 100644 tools/testing/selftests/firmware/.gitignore create mode 100644 tools/testing/selftests/netfilter/.gitignore create mode 100755 tools/testing/selftests/run_kselftest.sh ----------------------------------------------------------------

5 years, 1 month

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[PATCH v2 0/3] Extract run_kselftest.sh and generate stand-alone test list

by Kees Cook

v2: - update documentation - include SPDX line in extracted script v1: https://lore.kernel.org/linux-kselftest/20200925234527.1885234-1-keescook@c… Hi! I really like Hangbin Liu's intent[1] but I think we need to be a little more clean about the implementation. This extracts run_kselftest.sh from the Makefile so it can actually be changed without embeds, etc. Instead, generate the test list into a text file. Everything gets much simpler. :) And in patch 2, I add back Hangbin Liu's new options (with some extra added) with knowledge of "collections" (i.e. Makefile TARGETS) and subtests. This should work really well with LAVA too, which needs to manipulate the lists of tests being run. Thoughts? -Kees [1] https://lore.kernel.org/lkml/20200914022227.437143-1-liuhangbin@gmail.com/ Kees Cook (3): selftests: Extract run_kselftest.sh and generate stand-alone test list selftests/run_kselftest.sh: Make each test individually selectable doc: dev-tools: kselftest.rst: Update examples and paths Documentation/dev-tools/kselftest.rst | 35 +++++---- tools/testing/selftests/Makefile | 26 ++----- tools/testing/selftests/lib.mk | 5 +- tools/testing/selftests/run_kselftest.sh | 93 ++++++++++++++++++++++++ 4 files changed, 124 insertions(+), 35 deletions(-) create mode 100755 tools/testing/selftests/run_kselftest.sh -- 2.25.1

5 years, 1 month

3
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[PATCH v1] lib/test_list: Follow existing pattern for a file name

by Andy Shevchenko

Test in lib/ either KUnit or not are named in the same pattern, i.e. test_*.c, except few ones. Rename list-test.c to test_list.c to follow this pattern. Note, current documentation doesn't specify any file name conventions, and we glad to stick with a current one in the subsystem. Signed-off-by: Andy Shevchenko <andriy.shevchenko(a)linux.intel.com> --- lib/Makefile | 4 ++-- lib/{list-test.c => test_list.c} | 0 2 files changed, 2 insertions(+), 2 deletions(-) rename lib/{list-test.c => test_list.c} (100%) diff --git a/lib/Makefile b/lib/Makefile index 5ca03ba6ee45..e71abeea4a3e 100644 --- a/lib/Makefile +++ b/lib/Makefile @@ -350,6 +350,6 @@ obj-$(CONFIG_PLDMFW) += pldmfw/ # KUnit tests obj-$(CONFIG_BITFIELD_KUNIT) += bitfield_kunit.o -obj-$(CONFIG_LIST_KUNIT_TEST) += list-test.o -obj-$(CONFIG_LINEAR_RANGES_TEST) += test_linear_ranges.o obj-$(CONFIG_BITS_TEST) += test_bits.o +obj-$(CONFIG_LINEAR_RANGES_TEST) += test_linear_ranges.o +obj-$(CONFIG_LIST_KUNIT_TEST) += test_list.o diff --git a/lib/list-test.c b/lib/test_list.c similarity index 100% rename from lib/list-test.c rename to lib/test_list.c -- 2.28.0

5 years, 1 month

1
1
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[PATCH v2] lib: kunit: add list_sort test conversion to KUnit

by Vitor Massaru Iha

This adds the conversion of the runtime tests of test_list_sort, from `lib/test_list_sort.c` to KUnit tests. Signed-off-by: Vitor Massaru Iha <vitor(a)massaru.org> --- v2: * fix KUNIT_TEST sufix; * make kconfig help more concise; * remove obsolete commit comments; * change Kconfig entries to be more adherent to KUnit documentation; --- lib/Kconfig.debug | 24 ++++--- lib/Makefile | 2 +- lib/{test_list_sort.c => list_sort_kunit.c} | 73 +++++++++++---------- 3 files changed, 53 insertions(+), 46 deletions(-) rename lib/{test_list_sort.c => list_sort_kunit.c} (62%) diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index 4f09c6505a2e..b4b1338c523a 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -1905,16 +1905,6 @@ config LKDTM Documentation on how to use the module can be found in Documentation/fault-injection/provoke-crashes.rst -config TEST_LIST_SORT - tristate "Linked list sorting test" - depends on DEBUG_KERNEL || m - help - Enable this to turn on 'list_sort()' function test. This test is - executed only once during system boot (so affects only boot time), - or at module load time. - - If unsure, say N. - config TEST_MIN_HEAP tristate "Min heap test" depends on DEBUG_KERNEL || m @@ -2233,6 +2223,20 @@ config LIST_KUNIT_TEST If unsure, say N. +config LIST_SORT_KUNIT_TEST + tristate "KUnit Linked list sorting test" if !KUNIT_ALL_TESTS + depends on KUNIT + default KUNIT_ALL_TESTS + help + Enable this to turn on 'list_sort()' function test. This test is + executed only once during system boot (so affects only boot time), + or at module load time. + + For more information on KUnit and unit tests in general please refer + to the KUnit documentation in Documentation/dev-tools/kunit/. + + If unsure, say N. + config LINEAR_RANGES_TEST tristate "KUnit test for linear_ranges" depends on KUNIT diff --git a/lib/Makefile b/lib/Makefile index d862d41fdc3d..a00e26d34263 100644 --- a/lib/Makefile +++ b/lib/Makefile @@ -67,7 +67,6 @@ obj-$(CONFIG_TEST_UBSAN) += test_ubsan.o CFLAGS_test_ubsan.o += $(call cc-disable-warning, vla) UBSAN_SANITIZE_test_ubsan.o := y obj-$(CONFIG_TEST_KSTRTOX) += test-kstrtox.o -obj-$(CONFIG_TEST_LIST_SORT) += test_list_sort.o obj-$(CONFIG_TEST_MIN_HEAP) += test_min_heap.o obj-$(CONFIG_TEST_LKM) += test_module.o obj-$(CONFIG_TEST_VMALLOC) += test_vmalloc.o @@ -341,5 +340,6 @@ obj-$(CONFIG_PLDMFW) += pldmfw/ # KUnit tests obj-$(CONFIG_BITFIELD_KUNIT) += bitfield_kunit.o obj-$(CONFIG_LIST_KUNIT_TEST) += list-test.o +obj-$(CONFIG_LIST_SORT_KUNIT_TEST) += list_sort_kunit.o obj-$(CONFIG_LINEAR_RANGES_TEST) += test_linear_ranges.o obj-$(CONFIG_BITS_TEST) += test_bits.o diff --git a/lib/test_list_sort.c b/lib/list_sort_kunit.c similarity index 62% rename from lib/test_list_sort.c rename to lib/list_sort_kunit.c index 1f017d3b610e..20cbacbb7d6c 100644 --- a/lib/test_list_sort.c +++ b/lib/list_sort_kunit.c @@ -1,13 +1,10 @@ // SPDX-License-Identifier: GPL-2.0-only -#define pr_fmt(fmt) "list_sort_test: " fmt +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt -#include <linux/kernel.h> #include <linux/list_sort.h> #include <linux/list.h> -#include <linux/module.h> -#include <linux/printk.h> -#include <linux/slab.h> #include <linux/random.h> +#include <kunit/test.h> /* * The pattern of set bits in the list length determines which cases @@ -29,28 +26,28 @@ struct debug_el { /* Array, containing pointers to all elements in the test list */ static struct debug_el **elts __initdata; -static int __init check(struct debug_el *ela, struct debug_el *elb) +static int __init check(struct kunit *context, struct debug_el *ela, struct debug_el *elb) { if (ela->serial >= TEST_LIST_LEN) { - pr_err("error: incorrect serial %d\n", ela->serial); + KUNIT_FAIL(context, "incorrect serial %d", ela->serial); return -EINVAL; } if (elb->serial >= TEST_LIST_LEN) { - pr_err("error: incorrect serial %d\n", elb->serial); + KUNIT_FAIL(context, "incorrect serial %d", elb->serial); return -EINVAL; } if (elts[ela->serial] != ela || elts[elb->serial] != elb) { - pr_err("error: phantom element\n"); + KUNIT_FAIL(context, "phantom element"); return -EINVAL; } if (ela->poison1 != TEST_POISON1 || ela->poison2 != TEST_POISON2) { - pr_err("error: bad poison: %#x/%#x\n", - ela->poison1, ela->poison2); + KUNIT_FAIL(context, "bad poison: %#x/%#x", + ela->poison1, ela->poison2); return -EINVAL; } if (elb->poison1 != TEST_POISON1 || elb->poison2 != TEST_POISON2) { - pr_err("error: bad poison: %#x/%#x\n", - elb->poison1, elb->poison2); + KUNIT_FAIL(context, "bad poison: %#x/%#x", + elb->poison1, elb->poison2); return -EINVAL; } return 0; @@ -63,27 +60,26 @@ static int __init cmp(void *priv, struct list_head *a, struct list_head *b) ela = container_of(a, struct debug_el, list); elb = container_of(b, struct debug_el, list); - check(ela, elb); + check(priv, ela, elb); return ela->value - elb->value; } -static int __init list_sort_test(void) +static void __init test_list_sort(struct kunit *context) { - int i, count = 1, err = -ENOMEM; + int i, count = 1; struct debug_el *el; struct list_head *cur; LIST_HEAD(head); - pr_debug("start testing list_sort()\n"); - elts = kcalloc(TEST_LIST_LEN, sizeof(*elts), GFP_KERNEL); - if (!elts) - return err; + KUNIT_ASSERT_FALSE_MSG(context, elts == NULL, "kcalloc failed"); for (i = 0; i < TEST_LIST_LEN; i++) { el = kmalloc(sizeof(*el), GFP_KERNEL); - if (!el) + if (!el) { + KUNIT_FAIL(context, "kmalloc failed"); goto exit; + } /* force some equivalencies */ el->value = prandom_u32() % (TEST_LIST_LEN / 3); @@ -94,55 +90,62 @@ static int __init list_sort_test(void) list_add_tail(&el->list, &head); } - list_sort(NULL, &head, cmp); + list_sort(context, &head, cmp); - err = -EINVAL; for (cur = head.next; cur->next != &head; cur = cur->next) { struct debug_el *el1; int cmp_result; if (cur->next->prev != cur) { - pr_err("error: list is corrupted\n"); + KUNIT_FAIL(context, "list is corrupted"); goto exit; } - cmp_result = cmp(NULL, cur, cur->next); + cmp_result = cmp(context, cur, cur->next); if (cmp_result > 0) { - pr_err("error: list is not sorted\n"); + KUNIT_FAIL(context, "list is not sorted"); goto exit; } el = container_of(cur, struct debug_el, list); el1 = container_of(cur->next, struct debug_el, list); if (cmp_result == 0 && el->serial >= el1->serial) { - pr_err("error: order of equivalent elements not " - "preserved\n"); + KUNIT_FAIL(context, "order of equivalent elements not preserved"); goto exit; } - if (check(el, el1)) { - pr_err("error: element check failed\n"); + if (check(context, el, el1)) { goto exit; } count++; } if (head.prev != cur) { - pr_err("error: list is corrupted\n"); + KUNIT_FAIL(context, "list is corrupted"); goto exit; } if (count != TEST_LIST_LEN) { - pr_err("error: bad list length %d", count); + KUNIT_FAIL(context, "bad list length %d", count); goto exit; } - err = 0; exit: for (i = 0; i < TEST_LIST_LEN; i++) kfree(elts[i]); kfree(elts); - return err; } -module_init(list_sort_test); + +static struct kunit_case __refdata list_sort_test_cases[] = { + KUNIT_CASE(test_list_sort), + {} +}; + +static struct kunit_suite list_sort_test_suite = { + .name = "list-sort", + .test_cases = list_sort_test_cases, +}; + +kunit_test_suites(&list_sort_test_suite); + MODULE_LICENSE("GPL"); base-commit: d2585f5164c298aaaed14c2c8d313cbe7bd5b253 -- 2.26.2

5 years, 1 month

2
6
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[PATCH] lib: kunit: add test_min_heap test conversion to KUnit

by Vitor Massaru Iha

This adds the conversion of the runtime tests of test_min_heap, from `lib/test_min_heap.c` to KUnit tests. Please apply this commit first (linux-kselftest/kunit-fixes): 3f37d14b8a3152441f36b6bc74000996679f0998 kunit: kunit_config: Fix parsing of CONFIG options with space Signed-off-by: Vitor Massaru Iha <vitor(a)massaru.org> --- lib/Kconfig.debug | 29 ++++-- lib/Makefile | 2 +- lib/{test_min_heap.c => min_heap_kunit.c} | 117 ++++++++++++---------- 3 files changed, 83 insertions(+), 65 deletions(-) rename lib/{test_min_heap.c => min_heap_kunit.c} (60%) diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index 9ad9210d70a1..46674fc4972c 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -1864,16 +1864,6 @@ config TEST_LIST_SORT If unsure, say N. -config TEST_MIN_HEAP - tristate "Min heap test" - depends on DEBUG_KERNEL || m - help - Enable this to turn on min heap function tests. This test is - executed only once during system boot (so affects only boot time), - or at module load time. - - If unsure, say N. - config TEST_SORT tristate "Array-based sort test" depends on DEBUG_KERNEL || m @@ -2185,6 +2175,25 @@ config LINEAR_RANGES_TEST If unsure, say N. +config MIN_HEAP_KUNIT + tristate "KUnit test for Min heap" + depends on KUNIT + depends on DEBUG_KERNEL || m + help + Enable this to turn on min heap function tests. This test is + executed only once during system boot (so affects only boot time), + or at module load time. + + KUnit tests run during boot and output the results to the debug log + in TAP format (http://testanything.org/). Only useful for kernel devs + running the KUnit test harness, and not intended for inclusion into a + production build. + + For more information on KUnit and unit tests in general please refer + to the KUnit documentation in Documentation/dev-tools/kunit/. + + If unsure, say N. + config TEST_UDELAY tristate "udelay test driver" help diff --git a/lib/Makefile b/lib/Makefile index b1c42c10073b..748f57063160 100644 --- a/lib/Makefile +++ b/lib/Makefile @@ -72,7 +72,6 @@ CFLAGS_test_ubsan.o += $(call cc-disable-warning, vla) UBSAN_SANITIZE_test_ubsan.o := y obj-$(CONFIG_TEST_KSTRTOX) += test-kstrtox.o obj-$(CONFIG_TEST_LIST_SORT) += test_list_sort.o -obj-$(CONFIG_TEST_MIN_HEAP) += test_min_heap.o obj-$(CONFIG_TEST_LKM) += test_module.o obj-$(CONFIG_TEST_VMALLOC) += test_vmalloc.o obj-$(CONFIG_TEST_OVERFLOW) += test_overflow.o @@ -318,3 +317,4 @@ obj-$(CONFIG_OBJAGG) += objagg.o # KUnit tests obj-$(CONFIG_LIST_KUNIT_TEST) += list-test.o obj-$(CONFIG_LINEAR_RANGES_TEST) += test_linear_ranges.o +obj-$(CONFIG_MIN_HEAP_KUNIT) += min_heap_kunit.o diff --git a/lib/test_min_heap.c b/lib/min_heap_kunit.c similarity index 60% rename from lib/test_min_heap.c rename to lib/min_heap_kunit.c index d19c8080fd4d..398db1c63146 100644 --- a/lib/test_min_heap.c +++ b/lib/min_heap_kunit.c @@ -7,9 +7,8 @@ #include <linux/log2.h> #include <linux/min_heap.h> -#include <linux/module.h> -#include <linux/printk.h> #include <linux/random.h> +#include <kunit/test.h> static __init bool less_than(const void *lhs, const void *rhs) { @@ -29,37 +28,34 @@ static __init void swap_ints(void *lhs, void *rhs) *(int *)rhs = temp; } -static __init int pop_verify_heap(bool min_heap, +static __init void pop_verify_heap(struct kunit *context, + bool min_heap, struct min_heap *heap, const struct min_heap_callbacks *funcs) { int *values = heap->data; - int err = 0; int last; last = values[0]; min_heap_pop(heap, funcs); while (heap->nr > 0) { if (min_heap) { - if (last > values[0]) { - pr_err("error: expected %d <= %d\n", last, - values[0]); - err++; - } + KUNIT_EXPECT_FALSE_MSG(context, + last > values[0], + "expected %d <= %d\n", + last, values[0]); } else { - if (last < values[0]) { - pr_err("error: expected %d >= %d\n", last, - values[0]); - err++; - } + KUNIT_EXPECT_FALSE_MSG(context, + last < values[0], + "expected %d >= %d\n", + last, values[0]); } last = values[0]; min_heap_pop(heap, funcs); } - return err; } -static __init int test_heapify_all(bool min_heap) +static __init void test_heapify_all(struct kunit *context, bool min_heap) { int values[] = { 3, 1, 2, 4, 0x8000000, 0x7FFFFFF, 0, -3, -1, -2, -4, 0x8000000, 0x7FFFFFF }; @@ -73,12 +69,11 @@ static __init int test_heapify_all(bool min_heap) .less = min_heap ? less_than : greater_than, .swp = swap_ints, }; - int i, err; + int i; /* Test with known set of values. */ min_heapify_all(&heap, &funcs); - err = pop_verify_heap(min_heap, &heap, &funcs); - + pop_verify_heap(context, min_heap, &heap, &funcs); /* Test with randomly generated values. */ heap.nr = ARRAY_SIZE(values); @@ -86,12 +81,10 @@ static __init int test_heapify_all(bool min_heap) values[i] = get_random_int(); min_heapify_all(&heap, &funcs); - err += pop_verify_heap(min_heap, &heap, &funcs); - - return err; + pop_verify_heap(context, min_heap, &heap, &funcs); } -static __init int test_heap_push(bool min_heap) +static __init void test_heap_push(struct kunit *context, bool min_heap) { const int data[] = { 3, 1, 2, 4, 0x80000000, 0x7FFFFFFF, 0, -3, -1, -2, -4, 0x80000000, 0x7FFFFFFF }; @@ -106,25 +99,22 @@ static __init int test_heap_push(bool min_heap) .less = min_heap ? less_than : greater_than, .swp = swap_ints, }; - int i, temp, err; + int i, temp; /* Test with known set of values copied from data. */ for (i = 0; i < ARRAY_SIZE(data); i++) min_heap_push(&heap, &data[i], &funcs); - - err = pop_verify_heap(min_heap, &heap, &funcs); + pop_verify_heap(context, min_heap, &heap, &funcs); /* Test with randomly generated values. */ while (heap.nr < heap.size) { temp = get_random_int(); min_heap_push(&heap, &temp, &funcs); } - err += pop_verify_heap(min_heap, &heap, &funcs); - - return err; + pop_verify_heap(context, min_heap, &heap, &funcs); } -static __init int test_heap_pop_push(bool min_heap) +static __init void test_heap_pop_push(struct kunit *context, bool min_heap) { const int data[] = { 3, 1, 2, 4, 0x80000000, 0x7FFFFFFF, 0, -3, -1, -2, -4, 0x80000000, 0x7FFFFFFF }; @@ -139,7 +129,7 @@ static __init int test_heap_pop_push(bool min_heap) .less = min_heap ? less_than : greater_than, .swp = swap_ints, }; - int i, temp, err; + int i, temp; /* Fill values with data to pop and replace. */ temp = min_heap ? 0x80000000 : 0x7FFFFFFF; @@ -149,8 +139,7 @@ static __init int test_heap_pop_push(bool min_heap) /* Test with known set of values copied from data. */ for (i = 0; i < ARRAY_SIZE(data); i++) min_heap_pop_push(&heap, &data[i], &funcs); - - err = pop_verify_heap(min_heap, &heap, &funcs); + pop_verify_heap(context, min_heap, &heap, &funcs); heap.nr = 0; for (i = 0; i < ARRAY_SIZE(data); i++) @@ -161,34 +150,54 @@ static __init int test_heap_pop_push(bool min_heap) temp = get_random_int(); min_heap_pop_push(&heap, &temp, &funcs); } - err += pop_verify_heap(min_heap, &heap, &funcs); + pop_verify_heap(context, min_heap, &heap, &funcs); +} - return err; +static void __init test_heapify_all_true(struct kunit *context) +{ + test_heapify_all(context, true); } -static int __init test_min_heap_init(void) +static void __init test_heapify_all_false(struct kunit *context) { - int err = 0; - - err += test_heapify_all(true); - err += test_heapify_all(false); - err += test_heap_push(true); - err += test_heap_push(false); - err += test_heap_pop_push(true); - err += test_heap_pop_push(false); - if (err) { - pr_err("test failed with %d errors\n", err); - return -EINVAL; - } - pr_info("test passed\n"); - return 0; + test_heapify_all(context, true); +} + +static void __init test_heap_push_true(struct kunit *context) +{ + test_heap_push(context, true); +} + +static void __init test_heap_push_false(struct kunit *context) +{ + test_heap_push(context, false); } -module_init(test_min_heap_init); -static void __exit test_min_heap_exit(void) +static void __init test_heap_pop_push_true(struct kunit *context) { - /* do nothing */ + test_heap_pop_push(context, true); } -module_exit(test_min_heap_exit); + +static void __init test_heap_pop_push_false(struct kunit *context) +{ + test_heap_pop_push(context, false); +} + +static struct kunit_case __refdata min_heap_test_cases[] = { + KUNIT_CASE(test_heapify_all_true), + KUNIT_CASE(test_heapify_all_false), + KUNIT_CASE(test_heap_push_true), + KUNIT_CASE(test_heap_push_false), + KUNIT_CASE(test_heap_pop_push_true), + KUNIT_CASE(test_heap_pop_push_false), + {} +}; + +static struct kunit_suite min_heap_test_suite = { + .name = "min-heap", + .test_cases = min_heap_test_cases, +}; + +kunit_test_suites(&min_heap_test_suite); MODULE_LICENSE("GPL"); base-commit: d43c7fb05765152d4d4a39a8ef957c4ea14d8847 -- 2.26.2

5 years, 1 month

6
15
0 0

[PATCH v21 00/12] Landlock LSM

by Mickaël Salaün

Hi, This new patch series mainly simplifies the syscalls thanks to Arnd Bergmann at LPC. The SLOC count is 1188 for security/landlock/ and 1673 for tools/testing/selftest/landlock/ . Test coverage for security/landlock/ is 95.4% of lines. The code not covered only deals with internal kernel errors (e.g. memory allocation) and race conditions. The compiled documentation is available here: https://landlock.io/linux-doc/landlock-v21/security/landlock/index.html This series can be applied on top of v5.9-rc8 . This can be tested with CONFIG_SECURITY_LANDLOCK and CONFIG_SAMPLE_LANDLOCK. This patch series can be found in a Git repository here: https://github.com/landlock-lsm/linux/commits/landlock-v21 I would really appreciate constructive comments on this patch series. # Landlock LSM The goal of Landlock is to enable to restrict ambient rights (e.g. global filesystem access) for a set of processes. Because Landlock is a stackable LSM [1], it makes possible to create safe security sandboxes as new security layers in addition to the existing system-wide access-controls. This kind of sandbox is expected to help mitigate the security impact of bugs or unexpected/malicious behaviors in user-space applications. Landlock empowers any process, including unprivileged ones, to securely restrict themselves. Landlock is inspired by seccomp-bpf but instead of filtering syscalls and their raw arguments, a Landlock rule can restrict the use of kernel objects like file hierarchies, according to the kernel semantic. Landlock also takes inspiration from other OS sandbox mechanisms: XNU Sandbox, FreeBSD Capsicum or OpenBSD Pledge/Unveil. In this current form, Landlock misses some access-control features. This enables to minimize this patch series and ease review. This series still addresses multiple use cases, especially with the combined use of seccomp-bpf: applications with built-in sandboxing, init systems, security sandbox tools and security-oriented APIs [2]. Previous version: https://lore.kernel.org/lkml/20200802215903.91936-1-mic@digikod.net/ [1] https://lore.kernel.org/lkml/50db058a-7dde-441b-a7f9-f6837fe8b69f@schaufler… [2] https://lore.kernel.org/lkml/f646e1c7-33cf-333f-070c-0a40ad0468cd@digikod.n… Casey Schaufler (1): LSM: Infrastructure management of the superblock Mickaël Salaün (11): landlock: Add object management landlock: Add ruleset and domain management landlock: Set up the security framework and manage credentials landlock: Add ptrace restrictions fs,security: Add sb_delete hook landlock: Support filesystem access-control landlock: Add syscall implementations arch: Wire up Landlock syscalls selftests/landlock: Add initial tests samples/landlock: Add a sandbox manager example landlock: Add user and kernel documentation Documentation/security/index.rst | 1 + Documentation/security/landlock/index.rst | 18 + Documentation/security/landlock/kernel.rst | 69 + Documentation/security/landlock/user.rst | 242 +++ MAINTAINERS | 11 + arch/Kconfig | 7 + arch/alpha/kernel/syscalls/syscall.tbl | 3 + arch/arm/tools/syscall.tbl | 3 + arch/arm64/include/asm/unistd.h | 2 +- arch/arm64/include/asm/unistd32.h | 6 + arch/ia64/kernel/syscalls/syscall.tbl | 3 + arch/m68k/kernel/syscalls/syscall.tbl | 3 + arch/microblaze/kernel/syscalls/syscall.tbl | 3 + arch/mips/kernel/syscalls/syscall_n32.tbl | 3 + arch/mips/kernel/syscalls/syscall_n64.tbl | 3 + arch/mips/kernel/syscalls/syscall_o32.tbl | 3 + arch/parisc/kernel/syscalls/syscall.tbl | 3 + arch/powerpc/kernel/syscalls/syscall.tbl | 3 + arch/s390/kernel/syscalls/syscall.tbl | 3 + arch/sh/kernel/syscalls/syscall.tbl | 3 + arch/sparc/kernel/syscalls/syscall.tbl | 3 + arch/um/Kconfig | 1 + arch/x86/entry/syscalls/syscall_32.tbl | 3 + arch/x86/entry/syscalls/syscall_64.tbl | 3 + arch/xtensa/kernel/syscalls/syscall.tbl | 3 + fs/super.c | 1 + include/linux/lsm_hook_defs.h | 1 + include/linux/lsm_hooks.h | 3 + include/linux/security.h | 4 + include/linux/syscalls.h | 7 + include/uapi/asm-generic/unistd.h | 8 +- include/uapi/linux/landlock.h | 131 ++ kernel/sys_ni.c | 5 + samples/Kconfig | 7 + samples/Makefile | 1 + samples/landlock/.gitignore | 1 + samples/landlock/Makefile | 15 + samples/landlock/sandboxer.c | 220 +++ security/Kconfig | 11 +- security/Makefile | 2 + security/landlock/Kconfig | 18 + security/landlock/Makefile | 4 + security/landlock/common.h | 20 + security/landlock/cred.c | 46 + security/landlock/cred.h | 58 + security/landlock/fs.c | 609 ++++++ security/landlock/fs.h | 60 + security/landlock/object.c | 66 + security/landlock/object.h | 91 + security/landlock/ptrace.c | 120 ++ security/landlock/ptrace.h | 14 + security/landlock/ruleset.c | 342 ++++ security/landlock/ruleset.h | 157 ++ security/landlock/setup.c | 40 + security/landlock/setup.h | 18 + security/landlock/syscall.c | 427 +++++ security/security.c | 51 +- security/selinux/hooks.c | 58 +- security/selinux/include/objsec.h | 6 + security/selinux/ss/services.c | 3 +- security/smack/smack.h | 6 + security/smack/smack_lsm.c | 35 +- tools/testing/selftests/Makefile | 1 + tools/testing/selftests/landlock/.gitignore | 2 + tools/testing/selftests/landlock/Makefile | 24 + tools/testing/selftests/landlock/base_test.c | 117 ++ tools/testing/selftests/landlock/common.h | 113 ++ tools/testing/selftests/landlock/config | 5 + tools/testing/selftests/landlock/fs_test.c | 1695 +++++++++++++++++ .../testing/selftests/landlock/ptrace_test.c | 307 +++ tools/testing/selftests/landlock/true.c | 5 + 71 files changed, 5263 insertions(+), 77 deletions(-) create mode 100644 Documentation/security/landlock/index.rst create mode 100644 Documentation/security/landlock/kernel.rst create mode 100644 Documentation/security/landlock/user.rst create mode 100644 include/uapi/linux/landlock.h create mode 100644 samples/landlock/.gitignore create mode 100644 samples/landlock/Makefile create mode 100644 samples/landlock/sandboxer.c create mode 100644 security/landlock/Kconfig create mode 100644 security/landlock/Makefile create mode 100644 security/landlock/common.h create mode 100644 security/landlock/cred.c create mode 100644 security/landlock/cred.h create mode 100644 security/landlock/fs.c create mode 100644 security/landlock/fs.h create mode 100644 security/landlock/object.c create mode 100644 security/landlock/object.h create mode 100644 security/landlock/ptrace.c create mode 100644 security/landlock/ptrace.h create mode 100644 security/landlock/ruleset.c create mode 100644 security/landlock/ruleset.h create mode 100644 security/landlock/setup.c create mode 100644 security/landlock/setup.h create mode 100644 security/landlock/syscall.c create mode 100644 tools/testing/selftests/landlock/.gitignore create mode 100644 tools/testing/selftests/landlock/Makefile create mode 100644 tools/testing/selftests/landlock/base_test.c create mode 100644 tools/testing/selftests/landlock/common.h create mode 100644 tools/testing/selftests/landlock/config create mode 100644 tools/testing/selftests/landlock/fs_test.c create mode 100644 tools/testing/selftests/landlock/ptrace_test.c create mode 100644 tools/testing/selftests/landlock/true.c -- 2.28.0

5 years, 1 month

2
17
0 0

selftests: netfilter: nft_nat.sh: /dev/stdin:2:9-15: Error: syntax error, unexpected counter

by Naresh Kamboju

While running kselftest netfilter test on x86_64 devices linux next tag 20201013 kernel these errors are noticed. This not specific to kernel version we have noticed these errors earlier also. Am I missing configs ? Please refer to the config file we are using. We are using the minimal busybox shell. BusyBox v1.27.2 (2020-07-17 18:42:50 UTC) multi-call binary. metadata: git branch: master git repo: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git git commit: f2fb1afc57304f9dd68c20a08270e287470af2eb git describe: next-20201013 make_kernelversion: 5.9.0 kernel-config: http://snapshots.linaro.org/openembedded/lkft/lkft/sumo/intel-corei7-64/lkf… Test output log: -------------------- selftests: netfilter: nft_nat.sh [ 1207.251385] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 1207.342479] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready # /dev/stdin:2:9-15: Error: syntax error, unexpected counter # counter ns0in {} # ^^^^^^^ # /dev/stdin:3:9-15: Error: syntax error, unexpected counter # counter ns1in {} # ^^^^^^^ # /dev/stdin:4:9-15: Error: syntax error, unexpected counter # counter ns2in {} # ^^^^^^^ # /dev/stdin:6:9-15: Error: syntax error, unexpected counter # counter ns0out {} # ^^^^^^^ <trim> # /dev/stdin:12:9-15: Error: syntax error, unexpected counter # counter ns2in6 {} # ^^^^^^^ # /dev/stdin:14:9-15: Error: syntax error, unexpected counter # counter ns0out6 {} # ^^^^^^^ [ 1208.229989] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready # <cmdline>:1:6-12: Error: syntax error, unexpected counter # list counter inet filter ns0in # ^^^^^^^ # ERROR: ns0in counter in ns1-loU9Vlmj has unexpected value (expected packets 1 bytes 84) at check_counters 1 # <cmdline>:1:6-12: Error: syntax error, unexpected counter # list counter inet filter ns0in # ^^^^^^^ # <cmdline>:1:6-12: Error: syntax error, unexpected counter # list counter inet filter ns0out # ^^^^^^^ # ERROR: ns0out counter in ns1-loU9Vlmj has unexpected value (expected packets 1 bytes 84) at check_counters 2 # <cmdline>:1:6-12: Error: syntax error, unexpected counter # list counter inet filter ns0out # ^^^^^^^ # <cmdline>:1:6-12: Error: syntax error, unexpected counter # list counter inet filter ns0in6 # ERROR: ns1 counter in ns0-loU9Vlmj has unexpected value (expected packets 1 bytes 104) at check_ns0_counters 5 # <cmdline>:1:6-12: Error: syntax error, unexpected counter # list counter inet filter ns1 # ^^^^^^^ <trim> # <cmdline>:1:16-19: Error: syntax error, unexpected inet # reset counters inet # ^^^^ # <cmdline>:1:16-19: Error: syntax error, unexpected inet # reset counters inet # ^^^^ # FAIL: nftables v0.7 (Scrooge McDuck) not ok 2 selftests: netfilter: nft_nat.sh # exit=1 # selftests: netfilter: bridge_brouter.sh # SKIP: Could not run test without ebtables ok 3 selftests: netfilter: bridge_brouter.sh # SKIP # selftests: netfilter: conntrack_icmp_related.sh [ 1215.679815] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 1215.698932] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 1215.711612] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 1216.678043] IPv6: ADDRCONF(NETDEV_CHANGE): eth1: link becomes ready # internal:0:0-0: Error: Could not open file \"-\": No such file or directory # # # internal:0:0-0: Error: Could not open file \"-\": No such file or directory # # # internal:0:0-0: Error: Could not open file \"-\": No such file or directory # # # internal:0:0-0: Error: Could not open file \"-\": No such file or directory # # # internal:0:0-0: Error: Could not open file \"-\": No such file or directory # # # <cmdline>:1:6-12: Error: syntax error, unexpected counter # list counter inet filter unknown # ^^^^^^^ # ERROR: counter unknown in nsclient1 has unexpected value (expected packets 0 bytes 0) # <cmdline>:1:6-12: Error: syntax error, unexpected counter # list counter inet filter unknown # ^^^^^^^ <trim> # ERROR: counter related in nsclient1 has unexpected value (expected packets 2 bytes 1856) # <cmdline>:1:6-12: Error: syntax error, unexpected counter # list counter inet filter related # ^^^^^^^ # ERROR: icmp error RELATED state test has failed not ok 4 selftests: netfilter: conntrack_icmp_related.sh # exit=1 # selftests: netfilter: nft_flowtable.sh # Cannot create namespace file \"/var/run/netns/ns1\": File exists [ 1230.570705] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 1230.757525] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 1230.843221] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready # internal:0:0-0: Error: Could not open file \"-\": No such file or directory # # # PASS: netns routing/connectivity: ns1 can reach ns2 # BusyBox v1.27.2 (2020-07-17 18:42:50 UTC) multi-call binary. # # Usage: nc [IPADDR PORT] # BusyBox v1.27.2 (2020-07-17 18:42:50 UTC) multi-call binary. # # Usage: nc [IPADDR PORT] # FAIL: file mismatch for ns1 -> ns2 # -rw------- 1 root root 1079296 Oct 13 09:54 /tmp/tmp.EyNCJDBncG # -rw------- 1 root root 0 Oct 13 09:54 /tmp/tmp.CR5cdEqIHB # FAIL: file mismatch for ns1 <- ns2 # -rw------- 1 root root 4677632 Oct 13 09:54 /tmp/tmp.NkSMo4ZijB # -rw------- 1 root root 0 Oct 13 09:54 /tmp/tmp.irBE9wPUAV # FAIL: flow offload for ns1/ns2: # internal:0:0-0: Error: Could not open file \"-\": No such file or directory # # # BusyBox v1.27.2 (2020-07-17 18:42:50 UTC) multi-call binary. # # Usage: nc [IPADDR PORT] # BusyBox v1.27.2 (2020-07-17 18:42:50 UTC) multi-call binary. # # Usage: nc [IPADDR PORT] # FAIL: file mismatch for ns1 -> ns2 # -rw------- 1 root root 1079296 Oct 13 09:54 /tmp/tmp.EyNCJDBncG # -rw------- 1 root root 0 Oct 13 09:54 /tmp/tmp.CR5cdEqIHB # FAIL: file mismatch for ns1 <- ns2 # -rw------- 1 root root 4677632 Oct 13 09:54 /tmp/tmp.NkSMo4ZijB # -rw------- 1 root root 0 Oct 13 09:54 /tmp/tmp.irBE9wPUAV # FAIL: flow offload for ns1/ns2 with NAT # <cmdline>:1:1-23: Error: Could not process rule: Table 'filter' does not exist # list table inet filter # ^^^^^^^^^^^^^^^^^^^^^^^ # <cmdline>:1:32-32: Error: syntax error, unexpected newline, expecting handle # delete rule inet filter forward # ^ # FAIL: Could not delete large-packet accept rule not ok 5 selftests: netfilter: nft_flowtable.sh # exit=1 # selftests: netfilter: ipvs.sh # skip: could not run test without ipvs module ok 6 selftests: netfilter: ipvs.sh # SKIP # selftests: netfilter: nft_concat_range.sh # TEST: reported issues # Add two elements, flush, re-add [ 1240.096121] kauditd_printk_skb: 40 callbacks suppressed [ 1240.096124] audit: type=1325 audit(1602582894.032:87830): table=t:72;?:0 family=2 entries=1 op=nft_register_table pid=9084 subj=kernel comm=\"nft\" [ 1240.114551] audit: type=1325 audit(1602582894.032:87830): table=t:72;s:1 family=2 entries=0 op=nft_register_set pid=9084 subj=kernel comm=\"nft\" [ 1240.127450] audit: type=1325 audit(1602582894.032:87830): table=?:0;?:0 family=0 entries=2 op=nft_register_gen pid=9084 subj=kernel comm=\"nft\" [FAIL] [ 1240.169015] audit: type=1325 audit(1602582894.105:87831): table=t:72;s:1 family=2 entries=0 op=nft_unregister_set pid=9087 subj=kernel comm=\"nft\" [ 1240.182153] audit: type=1325 audit(1602582894.105:87831): table=t:72;?:0 family=2 entries=0 op=nft_unregister_table pid=9087 subj=kernel comm=\"nft\" [ 1240.195412] audit: type=1325 audit(1602582894.105:87831): table=?:0;?:0 family=0 entries=3 op=nft_register_gen pid=9087 subj=kernel comm=\"nft\" not ok 7 selftests: netfilter: nft_concat_range.sh # exit=1 # selftests: netfilter: nft_conntrack_helper.sh # SKIP: Could not run test without conntrack tool ok 8 selftests: netfilter: nft_conntrack_helper.sh # SKIP # selftests: netfilter: nft_queue.sh [ 1242.587245] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 1242.605473] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready # internal:0:0-0: Error: Could not open file \"-\": No such file or directory # # [ 1243.557996] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready # PASS: ns1-4ngWFkmc can reach ns2-4ngWFkmc # internal:0:0-0: Error: Could not open file \"-\": No such file or directory # # # FAIL: ip expected failure, got 0 not ok 9 selftests: netfilter: nft_queue.sh # exit=1 # selftests: netfilter: nft_meta.sh # /dev/stdin:2:9-15: Error: syntax error, unexpected counter # counter iifcount {} # ^^^^^^^ # /dev/stdin:3:9-15: Error: syntax error, [ 1245.942205] kselftest: Running tests in nsfs unexpected counter # counter iifnamecount {} # ^^^^^^^ # /dev/stdin:4:9-15: Error: syntax error, unexpected counter # counter iifgroupcount {} # ^^^^^^^ <trim> # /dev/stdin:11:9-15: Error: syntax error, unexpected counter # counter icurrentyearc[ 1246.027275] kselftest: Running tests in pidfd ounter {} # ^^^^^^^ # SKIP: Could not add test ruleset Reported-by: Naresh Kamboju <naresh.kamboju(a)linaro.org> Full test log link, https://lkft.validation.linaro.org/scheduler/job/1839013#L12339 -- Linaro LKFT https://lkft.linaro.org

5 years, 1 month

2
3
0 0

[PATCH 1/2] kunit: Support for Parameterized Testing

by Arpitha Raghunandan

Implementation of support for parameterized testing in KUnit. Signed-off-by: Arpitha Raghunandan <98.arpi(a)gmail.com> --- include/kunit/test.h | 29 +++++++++++++++++++++++++++++ lib/kunit/test.c | 44 +++++++++++++++++++++++++++++++++++++++++++- 2 files changed, 72 insertions(+), 1 deletion(-) diff --git a/include/kunit/test.h b/include/kunit/test.h index 59f3144f009a..4740d66269b4 100644 --- a/include/kunit/test.h +++ b/include/kunit/test.h @@ -140,10 +140,14 @@ struct kunit; struct kunit_case { void (*run_case)(struct kunit *test); const char *name; + void* (*get_params)(void); + int max_parameters_count; + int parameter_size; /* private: internal use only. */ bool success; char *log; + bool parameterized; }; static inline char *kunit_status_to_string(bool status) @@ -162,6 +166,11 @@ static inline char *kunit_status_to_string(bool status) */ #define KUNIT_CASE(test_name) { .run_case = test_name, .name = #test_name } +#define KUNIT_CASE_PARAM(test_name, getparams, count, size) \ + { .run_case = test_name, .name = #test_name, \ + .parameterized = true, .get_params = (void* (*)(void))getparams, \ + .max_parameters_count = count, .parameter_size = size } + /** * struct kunit_suite - describes a related collection of &struct kunit_case * @@ -206,6 +215,23 @@ struct kunit { /* private: internal use only. */ const char *name; /* Read only after initialization! */ char *log; /* Points at case log after initialization */ + bool parameterized; /* True for parameterized tests */ + /* param_values stores the test parameters + * for parameterized tests. + */ + void *param_values; + /* max_parameters_count indicates maximum number of + * parameters for parameterized tests. + */ + int max_parameters_count; + /* iterator_count is used by the iterator method + * for parameterized tests. + */ + int iterator_count; + /* parameter_size indicates size of a single test case + * for parameterized tests. + */ + int parameter_size; struct kunit_try_catch try_catch; /* * success starts as true, and may only be set to false during a @@ -225,6 +251,7 @@ struct kunit { }; void kunit_init_test(struct kunit *test, const char *name, char *log); +void kunit_init_param_test(struct kunit *test, struct kunit_case *test_case); int kunit_run_tests(struct kunit_suite *suite); @@ -237,6 +264,8 @@ int __kunit_test_suites_init(struct kunit_suite **suites); void __kunit_test_suites_exit(struct kunit_suite **suites); +void *get_test_case_parameters(struct kunit *test); + /** * kunit_test_suites() - used to register one or more &struct kunit_suite * with KUnit. diff --git a/lib/kunit/test.c b/lib/kunit/test.c index c36037200310..ab9e13c81d4a 100644 --- a/lib/kunit/test.c +++ b/lib/kunit/test.c @@ -142,6 +142,11 @@ unsigned int kunit_test_case_num(struct kunit_suite *suite, } EXPORT_SYMBOL_GPL(kunit_test_case_num); +static void kunit_print_failed_param(struct kunit *test) +{ + kunit_err(test, "\n\tTest failed at parameter: %d\n", test->iterator_count); +} + static void kunit_print_string_stream(struct kunit *test, struct string_stream *stream) { @@ -182,6 +187,9 @@ static void kunit_fail(struct kunit *test, struct kunit_assert *assert) assert->format(assert, stream); + if (test->parameterized) + kunit_print_failed_param(test); + kunit_print_string_stream(test, stream); WARN_ON(string_stream_destroy(stream)); @@ -236,6 +244,18 @@ void kunit_init_test(struct kunit *test, const char *name, char *log) } EXPORT_SYMBOL_GPL(kunit_init_test); +void kunit_init_param_test(struct kunit *test, struct kunit_case *test_case) +{ + spin_lock_init(&test->lock); + INIT_LIST_HEAD(&test->resources); + test->parameterized = true; + test->param_values = (void *)(test_case->get_params()); + test->max_parameters_count = test_case->max_parameters_count; + test->parameter_size = test_case->parameter_size; + test->iterator_count = 0; +} +EXPORT_SYMBOL_GPL(kunit_init_param_test); + /* * Initializes and runs test case. Does not clean up or do post validations. */ @@ -254,7 +274,14 @@ static void kunit_run_case_internal(struct kunit *test, } } - test_case->run_case(test); + if (!test->parameterized) { + test_case->run_case(test); + } else { + int i; + + for (i = 0; i < test->max_parameters_count; i++) + test_case->run_case(test); + } } static void kunit_case_internal_cleanup(struct kunit *test) @@ -343,6 +370,8 @@ static void kunit_run_case_catch_errors(struct kunit_suite *suite, struct kunit test; kunit_init_test(&test, test_case->name, test_case->log); + if (test_case->parameterized) + kunit_init_param_test(&test, test_case); try_catch = &test.try_catch; kunit_try_catch_init(try_catch, @@ -407,6 +436,19 @@ void __kunit_test_suites_exit(struct kunit_suite **suites) } EXPORT_SYMBOL_GPL(__kunit_test_suites_exit); +/* + * Iterator method for the parameterized test cases + */ +void *get_test_case_parameters(struct kunit *test) +{ + int index = test->iterator_count * test->parameter_size; + + if (test->iterator_count != test->max_parameters_count) + test->iterator_count++; + return (test->param_values + index); +} +EXPORT_SYMBOL_GPL(get_test_case_parameters); + /* * Used for static resources and when a kunit_resource * has been created by * kunit_alloc_resource(). When an init function is supplied, @data is passed -- 2.25.1

5 years, 1 month

3
4
0 0

[RESEND PATCH v2] lib: kunit: add test_min_heap test conversion to KUnit

by Vitor Massaru Iha

This adds the conversion of the runtime tests of test_min_heap, from `lib/test_min_heap.c` to KUnit tests. Signed-off-by: Vitor Massaru Iha <vitor(a)massaru.org> --- v2: * change Kconfig entries to be more adherent to KUnit documentation, min_heap test runs when enabling full test coverage (KUNIT_ALL_TESTS). * make kconfig help more concise; * fix KUNIT_TEST sufix; --- lib/Kconfig.debug | 24 +++-- lib/Makefile | 2 +- lib/{test_min_heap.c => min_heap_kunit.c} | 117 ++++++++++++---------- 3 files changed, 78 insertions(+), 65 deletions(-) rename lib/{test_min_heap.c => min_heap_kunit.c} (60%) diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index 4f09c6505a2e..0e10ef1176de 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -1915,16 +1915,6 @@ config TEST_LIST_SORT If unsure, say N. -config TEST_MIN_HEAP - tristate "Min heap test" - depends on DEBUG_KERNEL || m - help - Enable this to turn on min heap function tests. This test is - executed only once during system boot (so affects only boot time), - or at module load time. - - If unsure, say N. - config TEST_SORT tristate "Array-based sort test" depends on DEBUG_KERNEL || m @@ -2256,6 +2246,20 @@ config BITS_TEST If unsure, say N. +config MIN_HEAP_KUNIT_TEST + tristate "KUnit test for Min heap" if !KUNIT_ALL_TESTS + depends on KUNIT + default KUNIT_ALL_TESTS + help + Enable this to turn on min heap function tests. This test is + executed only once during system boot (so affects only boot time), + or at module load time. + + For more information on KUnit and unit tests in general please refer + to the KUnit documentation in Documentation/dev-tools/kunit/. + + If unsure, say N. + config TEST_UDELAY tristate "udelay test driver" help diff --git a/lib/Makefile b/lib/Makefile index d862d41fdc3d..03d12e672cf8 100644 --- a/lib/Makefile +++ b/lib/Makefile @@ -68,7 +68,6 @@ CFLAGS_test_ubsan.o += $(call cc-disable-warning, vla) UBSAN_SANITIZE_test_ubsan.o := y obj-$(CONFIG_TEST_KSTRTOX) += test-kstrtox.o obj-$(CONFIG_TEST_LIST_SORT) += test_list_sort.o -obj-$(CONFIG_TEST_MIN_HEAP) += test_min_heap.o obj-$(CONFIG_TEST_LKM) += test_module.o obj-$(CONFIG_TEST_VMALLOC) += test_vmalloc.o obj-$(CONFIG_TEST_OVERFLOW) += test_overflow.o @@ -343,3 +342,4 @@ obj-$(CONFIG_BITFIELD_KUNIT) += bitfield_kunit.o obj-$(CONFIG_LIST_KUNIT_TEST) += list-test.o obj-$(CONFIG_LINEAR_RANGES_TEST) += test_linear_ranges.o obj-$(CONFIG_BITS_TEST) += test_bits.o +obj-$(CONFIG_MIN_HEAP_KUNIT_TEST) += min_heap_kunit.o diff --git a/lib/test_min_heap.c b/lib/min_heap_kunit.c similarity index 60% rename from lib/test_min_heap.c rename to lib/min_heap_kunit.c index d19c8080fd4d..398db1c63146 100644 --- a/lib/test_min_heap.c +++ b/lib/min_heap_kunit.c @@ -7,9 +7,8 @@ #include <linux/log2.h> #include <linux/min_heap.h> -#include <linux/module.h> -#include <linux/printk.h> #include <linux/random.h> +#include <kunit/test.h> static __init bool less_than(const void *lhs, const void *rhs) { @@ -29,37 +28,34 @@ static __init void swap_ints(void *lhs, void *rhs) *(int *)rhs = temp; } -static __init int pop_verify_heap(bool min_heap, +static __init void pop_verify_heap(struct kunit *context, + bool min_heap, struct min_heap *heap, const struct min_heap_callbacks *funcs) { int *values = heap->data; - int err = 0; int last; last = values[0]; min_heap_pop(heap, funcs); while (heap->nr > 0) { if (min_heap) { - if (last > values[0]) { - pr_err("error: expected %d <= %d\n", last, - values[0]); - err++; - } + KUNIT_EXPECT_FALSE_MSG(context, + last > values[0], + "expected %d <= %d\n", + last, values[0]); } else { - if (last < values[0]) { - pr_err("error: expected %d >= %d\n", last, - values[0]); - err++; - } + KUNIT_EXPECT_FALSE_MSG(context, + last < values[0], + "expected %d >= %d\n", + last, values[0]); } last = values[0]; min_heap_pop(heap, funcs); } - return err; } -static __init int test_heapify_all(bool min_heap) +static __init void test_heapify_all(struct kunit *context, bool min_heap) { int values[] = { 3, 1, 2, 4, 0x8000000, 0x7FFFFFF, 0, -3, -1, -2, -4, 0x8000000, 0x7FFFFFF }; @@ -73,12 +69,11 @@ static __init int test_heapify_all(bool min_heap) .less = min_heap ? less_than : greater_than, .swp = swap_ints, }; - int i, err; + int i; /* Test with known set of values. */ min_heapify_all(&heap, &funcs); - err = pop_verify_heap(min_heap, &heap, &funcs); - + pop_verify_heap(context, min_heap, &heap, &funcs); /* Test with randomly generated values. */ heap.nr = ARRAY_SIZE(values); @@ -86,12 +81,10 @@ static __init int test_heapify_all(bool min_heap) values[i] = get_random_int(); min_heapify_all(&heap, &funcs); - err += pop_verify_heap(min_heap, &heap, &funcs); - - return err; + pop_verify_heap(context, min_heap, &heap, &funcs); } -static __init int test_heap_push(bool min_heap) +static __init void test_heap_push(struct kunit *context, bool min_heap) { const int data[] = { 3, 1, 2, 4, 0x80000000, 0x7FFFFFFF, 0, -3, -1, -2, -4, 0x80000000, 0x7FFFFFFF }; @@ -106,25 +99,22 @@ static __init int test_heap_push(bool min_heap) .less = min_heap ? less_than : greater_than, .swp = swap_ints, }; - int i, temp, err; + int i, temp; /* Test with known set of values copied from data. */ for (i = 0; i < ARRAY_SIZE(data); i++) min_heap_push(&heap, &data[i], &funcs); - - err = pop_verify_heap(min_heap, &heap, &funcs); + pop_verify_heap(context, min_heap, &heap, &funcs); /* Test with randomly generated values. */ while (heap.nr < heap.size) { temp = get_random_int(); min_heap_push(&heap, &temp, &funcs); } - err += pop_verify_heap(min_heap, &heap, &funcs); - - return err; + pop_verify_heap(context, min_heap, &heap, &funcs); } -static __init int test_heap_pop_push(bool min_heap) +static __init void test_heap_pop_push(struct kunit *context, bool min_heap) { const int data[] = { 3, 1, 2, 4, 0x80000000, 0x7FFFFFFF, 0, -3, -1, -2, -4, 0x80000000, 0x7FFFFFFF }; @@ -139,7 +129,7 @@ static __init int test_heap_pop_push(bool min_heap) .less = min_heap ? less_than : greater_than, .swp = swap_ints, }; - int i, temp, err; + int i, temp; /* Fill values with data to pop and replace. */ temp = min_heap ? 0x80000000 : 0x7FFFFFFF; @@ -149,8 +139,7 @@ static __init int test_heap_pop_push(bool min_heap) /* Test with known set of values copied from data. */ for (i = 0; i < ARRAY_SIZE(data); i++) min_heap_pop_push(&heap, &data[i], &funcs); - - err = pop_verify_heap(min_heap, &heap, &funcs); + pop_verify_heap(context, min_heap, &heap, &funcs); heap.nr = 0; for (i = 0; i < ARRAY_SIZE(data); i++) @@ -161,34 +150,54 @@ static __init int test_heap_pop_push(bool min_heap) temp = get_random_int(); min_heap_pop_push(&heap, &temp, &funcs); } - err += pop_verify_heap(min_heap, &heap, &funcs); + pop_verify_heap(context, min_heap, &heap, &funcs); +} - return err; +static void __init test_heapify_all_true(struct kunit *context) +{ + test_heapify_all(context, true); } -static int __init test_min_heap_init(void) +static void __init test_heapify_all_false(struct kunit *context) { - int err = 0; - - err += test_heapify_all(true); - err += test_heapify_all(false); - err += test_heap_push(true); - err += test_heap_push(false); - err += test_heap_pop_push(true); - err += test_heap_pop_push(false); - if (err) { - pr_err("test failed with %d errors\n", err); - return -EINVAL; - } - pr_info("test passed\n"); - return 0; + test_heapify_all(context, true); +} + +static void __init test_heap_push_true(struct kunit *context) +{ + test_heap_push(context, true); +} + +static void __init test_heap_push_false(struct kunit *context) +{ + test_heap_push(context, false); } -module_init(test_min_heap_init); -static void __exit test_min_heap_exit(void) +static void __init test_heap_pop_push_true(struct kunit *context) { - /* do nothing */ + test_heap_pop_push(context, true); } -module_exit(test_min_heap_exit); + +static void __init test_heap_pop_push_false(struct kunit *context) +{ + test_heap_pop_push(context, false); +} + +static struct kunit_case __refdata min_heap_test_cases[] = { + KUNIT_CASE(test_heapify_all_true), + KUNIT_CASE(test_heapify_all_false), + KUNIT_CASE(test_heap_push_true), + KUNIT_CASE(test_heap_push_false), + KUNIT_CASE(test_heap_pop_push_true), + KUNIT_CASE(test_heap_pop_push_false), + {} +}; + +static struct kunit_suite min_heap_test_suite = { + .name = "min-heap", + .test_cases = min_heap_test_cases, +}; + +kunit_test_suites(&min_heap_test_suite); MODULE_LICENSE("GPL"); base-commit: d2585f5164c298aaaed14c2c8d313cbe7bd5b253 -- 2.26.2

5 years, 1 month

1
0
0 0

[PATCH v2] lib: kunit: add test_min_heap test conversion to KUnit

by Vitor Massaru Iha

This adds the conversion of the runtime tests of test_min_heap, from `lib/test_min_heap.c` to KUnit tests. Signed-off-by: Vitor Massaru Iha <vitor(a)massaru.org> --- v2: * min_heap test now runs when enabling full test coverage (KUNIT_ALL_TESTS). --- lib/Kconfig.debug | 29 ++++-- lib/Makefile | 2 +- lib/{test_min_heap.c => min_heap_kunit.c} | 117 ++++++++++++---------- 3 files changed, 83 insertions(+), 65 deletions(-) rename lib/{test_min_heap.c => min_heap_kunit.c} (60%) diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index 4f09c6505a2e..b75f4541e7d2 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -1915,16 +1915,6 @@ config TEST_LIST_SORT If unsure, say N. -config TEST_MIN_HEAP - tristate "Min heap test" - depends on DEBUG_KERNEL || m - help - Enable this to turn on min heap function tests. This test is - executed only once during system boot (so affects only boot time), - or at module load time. - - If unsure, say N. - config TEST_SORT tristate "Array-based sort test" depends on DEBUG_KERNEL || m @@ -2256,6 +2246,25 @@ config BITS_TEST If unsure, say N. +config MIN_HEAP_KUNIT + tristate "KUnit test for Min heap" if !KUNIT_ALL_TESTS + depends on KUNIT + default KUNIT_ALL_TESTS + help + Enable this to turn on min heap function tests. This test is + executed only once during system boot (so affects only boot time), + or at module load time. + + KUnit tests run during boot and output the results to the debug log + in TAP format (http://testanything.org/). Only useful for kernel devs + running the KUnit test harness, and not intended for inclusion into a + production build. + + For more information on KUnit and unit tests in general please refer + to the KUnit documentation in Documentation/dev-tools/kunit/. + + If unsure, say N. + config TEST_UDELAY tristate "udelay test driver" help diff --git a/lib/Makefile b/lib/Makefile index d862d41fdc3d..c88ade843502 100644 --- a/lib/Makefile +++ b/lib/Makefile @@ -68,7 +68,6 @@ CFLAGS_test_ubsan.o += $(call cc-disable-warning, vla) UBSAN_SANITIZE_test_ubsan.o := y obj-$(CONFIG_TEST_KSTRTOX) += test-kstrtox.o obj-$(CONFIG_TEST_LIST_SORT) += test_list_sort.o -obj-$(CONFIG_TEST_MIN_HEAP) += test_min_heap.o obj-$(CONFIG_TEST_LKM) += test_module.o obj-$(CONFIG_TEST_VMALLOC) += test_vmalloc.o obj-$(CONFIG_TEST_OVERFLOW) += test_overflow.o @@ -343,3 +342,4 @@ obj-$(CONFIG_BITFIELD_KUNIT) += bitfield_kunit.o obj-$(CONFIG_LIST_KUNIT_TEST) += list-test.o obj-$(CONFIG_LINEAR_RANGES_TEST) += test_linear_ranges.o obj-$(CONFIG_BITS_TEST) += test_bits.o +obj-$(CONFIG_MIN_HEAP_KUNIT) += min_heap_kunit.o diff --git a/lib/test_min_heap.c b/lib/min_heap_kunit.c similarity index 60% rename from lib/test_min_heap.c rename to lib/min_heap_kunit.c index d19c8080fd4d..398db1c63146 100644 --- a/lib/test_min_heap.c +++ b/lib/min_heap_kunit.c @@ -7,9 +7,8 @@ #include <linux/log2.h> #include <linux/min_heap.h> -#include <linux/module.h> -#include <linux/printk.h> #include <linux/random.h> +#include <kunit/test.h> static __init bool less_than(const void *lhs, const void *rhs) { @@ -29,37 +28,34 @@ static __init void swap_ints(void *lhs, void *rhs) *(int *)rhs = temp; } -static __init int pop_verify_heap(bool min_heap, +static __init void pop_verify_heap(struct kunit *context, + bool min_heap, struct min_heap *heap, const struct min_heap_callbacks *funcs) { int *values = heap->data; - int err = 0; int last; last = values[0]; min_heap_pop(heap, funcs); while (heap->nr > 0) { if (min_heap) { - if (last > values[0]) { - pr_err("error: expected %d <= %d\n", last, - values[0]); - err++; - } + KUNIT_EXPECT_FALSE_MSG(context, + last > values[0], + "expected %d <= %d\n", + last, values[0]); } else { - if (last < values[0]) { - pr_err("error: expected %d >= %d\n", last, - values[0]); - err++; - } + KUNIT_EXPECT_FALSE_MSG(context, + last < values[0], + "expected %d >= %d\n", + last, values[0]); } last = values[0]; min_heap_pop(heap, funcs); } - return err; } -static __init int test_heapify_all(bool min_heap) +static __init void test_heapify_all(struct kunit *context, bool min_heap) { int values[] = { 3, 1, 2, 4, 0x8000000, 0x7FFFFFF, 0, -3, -1, -2, -4, 0x8000000, 0x7FFFFFF }; @@ -73,12 +69,11 @@ static __init int test_heapify_all(bool min_heap) .less = min_heap ? less_than : greater_than, .swp = swap_ints, }; - int i, err; + int i; /* Test with known set of values. */ min_heapify_all(&heap, &funcs); - err = pop_verify_heap(min_heap, &heap, &funcs); - + pop_verify_heap(context, min_heap, &heap, &funcs); /* Test with randomly generated values. */ heap.nr = ARRAY_SIZE(values); @@ -86,12 +81,10 @@ static __init int test_heapify_all(bool min_heap) values[i] = get_random_int(); min_heapify_all(&heap, &funcs); - err += pop_verify_heap(min_heap, &heap, &funcs); - - return err; + pop_verify_heap(context, min_heap, &heap, &funcs); } -static __init int test_heap_push(bool min_heap) +static __init void test_heap_push(struct kunit *context, bool min_heap) { const int data[] = { 3, 1, 2, 4, 0x80000000, 0x7FFFFFFF, 0, -3, -1, -2, -4, 0x80000000, 0x7FFFFFFF }; @@ -106,25 +99,22 @@ static __init int test_heap_push(bool min_heap) .less = min_heap ? less_than : greater_than, .swp = swap_ints, }; - int i, temp, err; + int i, temp; /* Test with known set of values copied from data. */ for (i = 0; i < ARRAY_SIZE(data); i++) min_heap_push(&heap, &data[i], &funcs); - - err = pop_verify_heap(min_heap, &heap, &funcs); + pop_verify_heap(context, min_heap, &heap, &funcs); /* Test with randomly generated values. */ while (heap.nr < heap.size) { temp = get_random_int(); min_heap_push(&heap, &temp, &funcs); } - err += pop_verify_heap(min_heap, &heap, &funcs); - - return err; + pop_verify_heap(context, min_heap, &heap, &funcs); } -static __init int test_heap_pop_push(bool min_heap) +static __init void test_heap_pop_push(struct kunit *context, bool min_heap) { const int data[] = { 3, 1, 2, 4, 0x80000000, 0x7FFFFFFF, 0, -3, -1, -2, -4, 0x80000000, 0x7FFFFFFF }; @@ -139,7 +129,7 @@ static __init int test_heap_pop_push(bool min_heap) .less = min_heap ? less_than : greater_than, .swp = swap_ints, }; - int i, temp, err; + int i, temp; /* Fill values with data to pop and replace. */ temp = min_heap ? 0x80000000 : 0x7FFFFFFF; @@ -149,8 +139,7 @@ static __init int test_heap_pop_push(bool min_heap) /* Test with known set of values copied from data. */ for (i = 0; i < ARRAY_SIZE(data); i++) min_heap_pop_push(&heap, &data[i], &funcs); - - err = pop_verify_heap(min_heap, &heap, &funcs); + pop_verify_heap(context, min_heap, &heap, &funcs); heap.nr = 0; for (i = 0; i < ARRAY_SIZE(data); i++) @@ -161,34 +150,54 @@ static __init int test_heap_pop_push(bool min_heap) temp = get_random_int(); min_heap_pop_push(&heap, &temp, &funcs); } - err += pop_verify_heap(min_heap, &heap, &funcs); + pop_verify_heap(context, min_heap, &heap, &funcs); +} - return err; +static void __init test_heapify_all_true(struct kunit *context) +{ + test_heapify_all(context, true); } -static int __init test_min_heap_init(void) +static void __init test_heapify_all_false(struct kunit *context) { - int err = 0; - - err += test_heapify_all(true); - err += test_heapify_all(false); - err += test_heap_push(true); - err += test_heap_push(false); - err += test_heap_pop_push(true); - err += test_heap_pop_push(false); - if (err) { - pr_err("test failed with %d errors\n", err); - return -EINVAL; - } - pr_info("test passed\n"); - return 0; + test_heapify_all(context, true); +} + +static void __init test_heap_push_true(struct kunit *context) +{ + test_heap_push(context, true); +} + +static void __init test_heap_push_false(struct kunit *context) +{ + test_heap_push(context, false); } -module_init(test_min_heap_init); -static void __exit test_min_heap_exit(void) +static void __init test_heap_pop_push_true(struct kunit *context) { - /* do nothing */ + test_heap_pop_push(context, true); } -module_exit(test_min_heap_exit); + +static void __init test_heap_pop_push_false(struct kunit *context) +{ + test_heap_pop_push(context, false); +} + +static struct kunit_case __refdata min_heap_test_cases[] = { + KUNIT_CASE(test_heapify_all_true), + KUNIT_CASE(test_heapify_all_false), + KUNIT_CASE(test_heap_push_true), + KUNIT_CASE(test_heap_push_false), + KUNIT_CASE(test_heap_pop_push_true), + KUNIT_CASE(test_heap_pop_push_false), + {} +}; + +static struct kunit_suite min_heap_test_suite = { + .name = "min-heap", + .test_cases = min_heap_test_cases, +}; + +kunit_test_suites(&min_heap_test_suite); MODULE_LICENSE("GPL"); base-commit: d2585f5164c298aaaed14c2c8d313cbe7bd5b253 -- 2.26.2

5 years, 1 month

1
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[GIT PULL] Kselftest fixes update for Linux 5.10-rc1

by Shuah Khan

Hi Linus, Please pull the following Kselftest fixes update for Linux 5.10-rc1. This kselftest fixes update consists of a selftests harness fix to flush stdout before forking to avoid parent and child printing duplicates messages. This is evident when test output is redirected to a file. The second fix is a tools/ wide change to avoid comma separated statements from Joe Perches. This fix spans tools/lib, tools/power/cpupower, and selftests. diff is attached Please note that there is a conflict in tools/testing/selftests/vm/gup_test.c between commit: aa803771a80a ("tools: Avoid comma separated statements") from the kselftest-fixes tree and commit: 5c64830675a6 ("mm/gup_benchmark: rename to mm/gup_test") from the akpm tree. tools/testing/selftests/vm/gup_benchmark.c has been renamed in 5c64830675a6 from akpm tree. Stephen fixed this up in linux-next. thanks, -- Shuah ---------------------------------------------------------------- The following changes since commit 5c1e4f7e9e49b6925b1fb5c507d2c614f3edb292: selftests/timers: Turn off timeout setting (2020-08-20 15:49:28 -0600) are available in the Git repository at: git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest tags/linux-kselftest-fixes-5.10-rc1 for you to fetch changes up to aa803771a80aa2aa2d5cdd38434b369066fbb8fc: tools: Avoid comma separated statements (2020-10-02 10:36:36 -0600) ---------------------------------------------------------------- linux-kselftest-fixes-5.10-rc1 This kselftest fixes update consists of a selftests harness fix to flush stdout before forking to avoid parent and child printing duplicates messages. This is evident when test output is redirected to a file. The second fix is a tools/ wide change to avoid comma separated statements from Joe Perches. This fix spans tools/lib, tools/power/cpupower, and selftests. ---------------------------------------------------------------- Joe Perches (1): tools: Avoid comma separated statements Michael Ellerman (1): selftests/harness: Flush stdout before forking tools/lib/subcmd/help.c | 10 +- tools/power/cpupower/utils/cpufreq-set.c | 14 +- tools/testing/selftests/kselftest_harness.h | 5 + tools/testing/selftests/vm/gup_benchmark.c | 18 +- tools/testing/selftests/vm/userfaultfd.c | 296 +++++++++++++++++----------- 5 files changed, 215 insertions(+), 128 deletions(-) ----------------------------------------------------------------

5 years, 1 month

2
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WARNING: at net/netfilter/nf_tables_api.c:622 lockdep_nfnl_nft_mutex_not_held+0x28/0x38 [nf_tables]

by Naresh Kamboju

While running kselftest netfilter on arm64 hikey device on Linux next 20201013 the following kernel warning noticed. metadata: git branch: master git repo: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git git commit: f2fb1afc57304f9dd68c20a08270e287470af2eb git describe: next-20201013 make_kernelversion: 5.9.0 kernel-config: http://snapshots.linaro.org/openembedded/lkft/lkft/sumo/hikey/lkft/linux-ne… steps to reproduce: --------------------------- # cd /opt/kselftests/default-in-kernel/ # ./run_kselftest.sh -c netfilter crash log: ---------------- # selftests: netfilter: nft_trans_stress.sh [ 1913.862919] ------------[ cut here ]------------ [ 1913.869773] WARNING: CPU: 2 PID: 31416 at /usr/src/kernel/net/netfilter/nf_tables_api.c:622 lockdep_nfnl_nft_mutex_not_held+0x28/0x38 [nf_tables] [ 1913.885399] Modules linked in: nf_tables nfnetlink act_mirred cls_u32 sch_etf xt_conntrack nf_conntrack nf_defrag_ipv4 libcrc32c ip6_tables nf_defrag_ipv6 ip_tables x_tables netdevsim 8021q garp mrp bridge stp llc sch_fq sch_ingress veth algif_hash wl18xx wlcore mac80211 cfg80211 snd_soc_hdmi_codec hci_uart btqca btbcm crct10dif_ce snd_soc_audio_graph_card snd_soc_simple_card_utils adv7511 wlcore_sdio cec bluetooth kirin_drm lima rfkill dw_drm_dsi gpu_sched drm_kms_helper drm fuse [last unloaded: test_blackhole_dev] [ 1913.941924] CPU: 2 PID: 31416 Comm: nft Tainted: G W 5.9.0-next-20201013 #1 [ 1913.954131] Hardware name: HiKey Development Board (DT) [ 1913.963342] pstate: 00000005 (nzcv daif -PAN -UAO -TCO BTYPE=--) [ 1913.973483] pc : lockdep_nfnl_nft_mutex_not_held+0x28/0x38 [nf_tables] [ 1913.984271] lr : lockdep_nfnl_nft_mutex_not_held+0x18/0x38 [nf_tables] [ 1913.995018] sp : ffff800013bc3550 [ 1914.002559] x29: ffff800013bc3550 x28: ffff800013bc3930 [ 1914.012197] x27: 0000000000000001 x26: ffff000045dc4e00 [ 1914.021880] x25: 0000000000000001 x24: ffff000045dc4e00 [ 1914.031565] x23: ffff800013bc3930 x22: 0000000000000001 [ 1914.041298] x21: ffff800012750000 x20: ffff800013bc3668 [ 1914.051068] x19: ffff800012750000 x18: 0000000000000000 [ 1914.060876] x17: 0000000000000000 x16: 0000000000000000 [ 1914.070699] x15: 0000000000000000 x14: ffff800009996d48 [ 1914.080534] x13: ffffffffff000000 x12: 0000000000000028 [ 1914.090418] x11: 0101010101010101 x10: 7f7f7f7f7f7f7f7f [ 1914.100355] x9 : fefefefefefefeff x8 : 7f7f7f7f7f7f7f7f [ 1914.110325] x7 : fefeff53544f4d48 x6 : 0000000000007ab8 [ 1914.120339] x5 : 0000000000000005 x4 : 0000000000000001 [ 1914.130388] x3 : 0000000000000001 x2 : 0000000000000000 [ 1914.140454] x1 : 00000000ffffffff x0 : 0000000000000001 [ 1914.150529] Call trace: [ 1914.157789] lockdep_nfnl_nft_mutex_not_held+0x28/0x38 [nf_tables] [ 1914.168967] nft_chain_parse_hook+0x58/0x320 [nf_tables] [ 1914.179342] nf_tables_addchain.isra.66+0xb8/0x510 [nf_tables] [ 1914.190340] nf_tables_newchain+0x408/0x618 [nf_tables] [ 1914.200734] nfnetlink_rcv_batch+0x4a0/0x610 [nfnetlink] [ 1914.211284] nfnetlink_rcv+0x174/0x1a8 [nfnetlink] [ 1914.221351] netlink_unicast+0x1dc/0x290 [ 1914.230589] netlink_sendmsg+0x2b8/0x3f8 [ 1914.239840] ____sys_sendmsg+0x288/0x2d0 [ 1914.249117] ___sys_sendmsg+0x90/0xd0 [ 1914.258154] __sys_sendmsg+0x78/0xd0 [ 1914.267140] __arm64_sys_sendmsg+0x2c/0x38 [ 1914.276705] el0_svc_common.constprop.3+0x7c/0x198 [ 1914.287041] do_el0_svc+0x34/0xa0 [ 1914.295928] el0_sync_handler+0x128/0x190 [ 1914.305567] el0_sync+0x140/0x180 [ 1914.314535] CPU: 2 PID: 31416 Comm: nft Tainted: G W 5.9.0-next-20201013 #1 [ 1914.328670] Hardware name: HiKey Development Board (DT) [ 1914.339812] Call trace: [ 1914.348184] dump_backtrace+0x0/0x1f0 [ 1914.357841] show_stack+0x2c/0x80 [ 1914.367181] dump_stack+0xf8/0x160 [ 1914.376615] __warn+0xac/0x168 [ 1914.385732] report_bug+0xcc/0x180 [ 1914.395242] bug_handler+0x24/0x78 [ 1914.404783] call_break_hook+0x80/0xa0 [ 1914.414725] brk_handler+0x28/0x68 [ 1914.424358] do_debug_exception+0xbc/0x128 [ 1914.434744] el1_sync_handler+0x7c/0x128 [ 1914.445017] el1_sync+0x7c/0x100 [ 1914.454625] lockdep_nfnl_nft_mutex_not_held+0x28/0x38 [nf_tables] [ 1914.467351] nft_chain_parse_hook+0x58/0x320 [nf_tables] [ 1914.479276] nf_tables_addchain.isra.66+0xb8/0x510 [nf_tables] [ 1914.491818] nf_tables_newchain+0x408/0x618 [nf_tables] [ 1914.503774] nfnetlink_rcv_batch+0x4a0/0x610 [nfnetlink] [ 1914.515899] nfnetlink_rcv+0x174/0x1a8 [nfnetlink] [ 1914.527525] netlink_unicast+0x1dc/0x290 [ 1914.538318] netlink_sendmsg+0x2b8/0x3f8 [ 1914.549125] ____sys_sendmsg+0x288/0x2d0 [ 1914.559959] ___sys_sendmsg+0x90/0xd0 [ 1914.570557] __sys_sendmsg+0x78/0xd0 [ 1914.581111] __arm64_sys_sendmsg+0x2c/0x38 [ 1914.592241] el0_svc_common.constprop.3+0x7c/0x198 [ 1914.604152] do_el0_svc+0x34/0xa0 [ 1914.614497] el0_sync_handler+0x128/0x190 [ 1914.625540] el0_sync+0x140/0x180 [ 1914.635652] irq event stamp: 0 [ 1914.645091] hardirqs last enabled at (0): [<0000000000000000>] 0x0 [ 1914.657471] hardirqs last disabled at (0): [<ffff80001008975c>] copy_process+0x68c/0x1910 [ 1914.671402] softirqs last enabled at (0): [<ffff80001008975c>] copy_process+0x68c/0x1910 [ 1914.685201] softirqs last disabled at (0): [<0000000000000000>] 0x0 [ 1914.696977] ---[ end trace 180274a5ab806f4e ]--- [ 1917.244483] hisi_thermal f7030700.tsensor: sensor <2> THERMAL ALARM: 66385 > 65000 Full test log link, https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20201013/te… -- Linaro LKFT https://lkft.linaro.org

5 years, 1 month

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[PATCH v6 64/80] kunit: test.h: fix a bad kernel-doc markup

by Mauro Carvalho Chehab

As warned by: ./include/kunit/test.h:504: WARNING: Block quote ends without a blank line; unexpected unindent. The right way to describe a function is: name - description Instead, kunit_remove_resource was using: name: description Causing it to be improperly parsed. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei(a)kernel.org> --- include/kunit/test.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/include/kunit/test.h b/include/kunit/test.h index 41b3a266bf8c..5c5ed262a950 100644 --- a/include/kunit/test.h +++ b/include/kunit/test.h @@ -498,8 +498,8 @@ static inline int kunit_destroy_named_resource(struct kunit *test, } /** - * kunit_remove_resource: remove resource from resource list associated with - * test. + * kunit_remove_resource() - remove resource from resource list associated with + * test. * @test: The test context object. * @res: The resource to be removed. * -- 2.26.2

5 years, 1 month

1
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[PATCH v6 61/80] kunit: test.h: solve kernel-doc warnings

by Mauro Carvalho Chehab

There are some warnings there: ./include/kunit/test.h:90: warning: Function parameter or member 'name' not described in 'kunit_resource' ./include/kunit/test.h:353: warning: Function parameter or member 'res' not described in 'kunit_add_resource' ./include/kunit/test.h:367: warning: Function parameter or member 'res' not described in 'kunit_add_named_resource' ./include/kunit/test.h:367: warning: Function parameter or member 'name' not described in 'kunit_add_named_resource' ./include/kunit/test.h:367: warning: Function parameter or member 'data' not described in 'kunit_add_named_resource' ./include/kunit/test.h:367: warning: Excess function parameter 'name_data' description in 'kunit_add_named_resource' Address them, ensuring that all non-private arguments will be properly described. With that regards, at struct kunit_resource, the free argument is described as user-provided. So, this doesn't seem to belong to the "private" part of the struct. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei(a)kernel.org> --- include/kunit/test.h | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-) diff --git a/include/kunit/test.h b/include/kunit/test.h index 59f3144f009a..41b3a266bf8c 100644 --- a/include/kunit/test.h +++ b/include/kunit/test.h @@ -25,6 +25,7 @@ typedef void (*kunit_resource_free_t)(struct kunit_resource *); /** * struct kunit_resource - represents a *test managed resource* * @data: for the user to store arbitrary data. + * @name: optional name * @free: a user supplied function to free the resource. Populated by * kunit_resource_alloc(). * @@ -80,10 +81,10 @@ typedef void (*kunit_resource_free_t)(struct kunit_resource *); */ struct kunit_resource { void *data; - const char *name; /* optional name */ - - /* private: internal use only. */ + const char *name; kunit_resource_free_t free; + + /* private: internal use only. */ struct kref refcount; struct list_head node; }; @@ -343,6 +344,7 @@ static inline void kunit_put_resource(struct kunit_resource *res) * none is supplied, the resource data value is simply set to @data. * If an init function is supplied, @data is passed to it instead. * @free: a user-supplied function to free the resource (if needed). + * @res: The resource. * @data: value to pass to init function or set in resource data field. */ int kunit_add_resource(struct kunit *test, @@ -356,7 +358,9 @@ int kunit_add_resource(struct kunit *test, * @test: The test context object. * @init: a user-supplied function to initialize the resource data, if needed. * @free: a user-supplied function to free the resource data, if needed. - * @name_data: name and data to be set for resource. + * @res: The resource. + * @name: name to be set for resource. + * @data: value to pass to init function or set in resource data field. */ int kunit_add_named_resource(struct kunit *test, kunit_resource_init_t init, -- 2.26.2

5 years, 1 month

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[PATCH v6 0/5] kunit: create a centralized executor to dispatch all KUnit tests

by Brendan Higgins

## TL;DR This patchset adds a centralized executor to dispatch tests rather than relying on late_initcall to schedule each test suite separately along with a couple of new features that depend on it. ## What am I trying to do? Conceptually, I am trying to provide a mechanism by which test suites can be grouped together so that they can be reasoned about collectively. The second to last patch in this series add features which depend on this: PATCH 04/05 Prints out a test plan[1] right before KUnit tests are run; this is valuable because it makes it possible for a test harness to detect whether the number of tests run matches the number of tests expected to be run, ensuring that no tests silently failed. The test plan includes a count of tests that will run. With the centralized executor, the tests are located in a single data structure and thus can be counted. In addition, by dispatching tests from a single location, we can guarantee that all KUnit tests run after late_init is complete, which was a concern during the initial KUnit patchset review (this has not been a problem in practice, but resolving with certainty is nevertheless desirable). Other use cases for this exist, but the above features should provide an idea of the value that this could provide. ## Changes since last revision: - Renamed the KUNIT_TEST_SUITES the KUNIT_TABLE section and moved it from INIT_DATA_SECTION to INIT_DATA; this had the additional consequence of making the first several architecture specific patches unnecessary - suggested by Kees. - Dropped the kunit_shutdown patches; I think it makes more sense to reintroduce them in a later patchset. Alan Maguire (1): kunit: test: create a single centralized executor for all tests Brendan Higgins (4): vmlinux.lds.h: add linker section for KUnit test suites init: main: add KUnit to kernel init kunit: test: add test plan to KUnit TAP format Documentation: kunit: add a brief blurb about kunit_test_suite Documentation/dev-tools/kunit/usage.rst | 5 ++ include/asm-generic/vmlinux.lds.h | 10 ++- include/kunit/test.h | 76 +++++++++++++----- init/main.c | 4 + lib/kunit/Makefile | 3 +- lib/kunit/executor.c | 43 ++++++++++ lib/kunit/test.c | 13 +-- tools/testing/kunit/kunit_parser.py | 76 ++++++++++++++---- .../test_is_test_passed-all_passed.log | Bin 1562 -> 1567 bytes .../test_data/test_is_test_passed-crash.log | Bin 3016 -> 3021 bytes .../test_data/test_is_test_passed-failure.log | Bin 1700 -> 1705 bytes 11 files changed, 180 insertions(+), 50 deletions(-) create mode 100644 lib/kunit/executor.c base-commit: 145ff1ec090dce9beb5a9590b5dc288e7bb2e65d -- 2.28.0.163.g6104cc2f0b6-goog

5 years, 1 month

3
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[PATCH] lib: Convert test_printf.c to KUnit

by Arpitha Raghunandan

Converts test lib/test_printf.c to KUnit. More information about KUnit can be found at https://www.kernel.org/doc/html/latest/dev-tools/kunit/index.html. KUnit provides a common framework for unit tests in the kernel. Signed-off-by: Arpitha Raghunandan <98.arpi(a)gmail.com> --- lib/Kconfig.debug | 7 +- lib/Makefile | 2 +- lib/{test_printf.c => printf_kunit.c} | 498 +++++++++++++------------- 3 files changed, 246 insertions(+), 261 deletions(-) rename lib/{test_printf.c => printf_kunit.c} (45%) diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index e068c3c7189a..7454258cf57a 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -2027,9 +2027,6 @@ config TEST_STRSCPY config TEST_KSTRTOX tristate "Test kstrto*() family of functions at runtime" -config TEST_PRINTF - tristate "Test printf() family of functions at runtime" - config TEST_BITMAP tristate "Test bitmap_*() family of functions at runtime" help @@ -2247,6 +2244,10 @@ config BITS_TEST If unsure, say N. +config PRINTF_KUNIT_TEST + tristate "KUnit tests for printf() family of functions at runtime" + depends on KUNIT + config TEST_UDELAY tristate "udelay test driver" help diff --git a/lib/Makefile b/lib/Makefile index e290fc5707ea..68e5b32a185f 100644 --- a/lib/Makefile +++ b/lib/Makefile @@ -77,7 +77,6 @@ obj-$(CONFIG_TEST_SORT) += test_sort.o obj-$(CONFIG_TEST_USER_COPY) += test_user_copy.o obj-$(CONFIG_TEST_STATIC_KEYS) += test_static_keys.o obj-$(CONFIG_TEST_STATIC_KEYS) += test_static_key_base.o -obj-$(CONFIG_TEST_PRINTF) += test_printf.o obj-$(CONFIG_TEST_BITMAP) += test_bitmap.o obj-$(CONFIG_TEST_STRSCPY) += test_strscpy.o obj-$(CONFIG_TEST_BITFIELD) += test_bitfield.o @@ -343,3 +342,4 @@ obj-$(CONFIG_PLDMFW) += pldmfw/ obj-$(CONFIG_LIST_KUNIT_TEST) += list-test.o obj-$(CONFIG_LINEAR_RANGES_TEST) += test_linear_ranges.o obj-$(CONFIG_BITS_TEST) += test_bits.o +obj-$(CONFIG_PRINTF_KUNIT_TEST) += printf_kunit.o diff --git a/lib/test_printf.c b/lib/printf_kunit.c similarity index 45% rename from lib/test_printf.c rename to lib/printf_kunit.c index 7ac87f18a10f..68ac5f9b8d28 100644 --- a/lib/test_printf.c +++ b/lib/printf_kunit.c @@ -5,6 +5,7 @@ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt +#include <kunit/test.h> #include <linux/init.h> #include <linux/kernel.h> #include <linux/module.h> @@ -30,79 +31,61 @@ #define PAD_SIZE 16 #define FILL_CHAR '$' -static unsigned total_tests __initdata; -static unsigned failed_tests __initdata; -static char *test_buffer __initdata; -static char *alloced_buffer __initdata; +static char *test_buffer; +static char *alloced_buffer; -static int __printf(4, 0) __init -do_test(int bufsize, const char *expect, int elen, +static void __printf(5, 0) +do_test(struct kunit *kunittest, int bufsize, const char *expect, int elen, const char *fmt, va_list ap) { va_list aq; int ret, written; - total_tests++; - memset(alloced_buffer, FILL_CHAR, BUF_SIZE + 2*PAD_SIZE); va_copy(aq, ap); ret = vsnprintf(test_buffer, bufsize, fmt, aq); va_end(aq); - if (ret != elen) { - pr_warn("vsnprintf(buf, %d, \"%s\", ...) returned %d, expected %d\n", + KUNIT_EXPECT_EQ_MSG(kunittest, ret, elen, + "vsnprintf(buf, %d, \"%s\", ...) returned %d, expected %d\n", bufsize, fmt, ret, elen); - return 1; - } - if (memchr_inv(alloced_buffer, FILL_CHAR, PAD_SIZE)) { - pr_warn("vsnprintf(buf, %d, \"%s\", ...) wrote before buffer\n", bufsize, fmt); - return 1; - } + KUNIT_EXPECT_EQ_MSG(kunittest, memchr_inv(alloced_buffer, FILL_CHAR, PAD_SIZE), NULL, + "vsnprintf(buf, %d, \"%s\", ...) wrote before buffer\n", + bufsize, fmt); if (!bufsize) { - if (memchr_inv(test_buffer, FILL_CHAR, BUF_SIZE + PAD_SIZE)) { - pr_warn("vsnprintf(buf, 0, \"%s\", ...) wrote to buffer\n", - fmt); - return 1; - } - return 0; + KUNIT_EXPECT_FALSE_MSG(kunittest, + memchr_inv(test_buffer, FILL_CHAR, BUF_SIZE + PAD_SIZE), + "vsnprintf(buf, 0, \"%s\", ...) wrote to buffer\n", fmt); + return; } written = min(bufsize-1, elen); - if (test_buffer[written]) { - pr_warn("vsnprintf(buf, %d, \"%s\", ...) did not nul-terminate buffer\n", + KUNIT_EXPECT_FALSE_MSG(kunittest, test_buffer[written], + "vsnprintf(buf, %d, \"%s\", ...) did not nul-terminate buffer\n", bufsize, fmt); - return 1; - } - if (memchr_inv(test_buffer + written + 1, FILL_CHAR, BUF_SIZE + PAD_SIZE - (written + 1))) { - pr_warn("vsnprintf(buf, %d, \"%s\", ...) wrote beyond the nul-terminator\n", + KUNIT_EXPECT_FALSE_MSG(kunittest, + memchr_inv(test_buffer + written + 1, FILL_CHAR, BUF_SIZE + PAD_SIZE - (written + 1)), + "vsnprintf(buf, %d, \"%s\", ...) wrote beyond the nul-terminator\n", bufsize, fmt); - return 1; - } - if (memcmp(test_buffer, expect, written)) { - pr_warn("vsnprintf(buf, %d, \"%s\", ...) wrote '%s', expected '%.*s'\n", + KUNIT_EXPECT_EQ_MSG(kunittest, memcmp(test_buffer, expect, written), 0, + "vsnprintf(buf, %d, \"%s\", ...) wrote '%s', expected '%.*s'\n", bufsize, fmt, test_buffer, written, expect); - return 1; - } - return 0; } -static void __printf(3, 4) __init -__test(const char *expect, int elen, const char *fmt, ...) +static void __printf(4, 5) +__test(struct kunit *kunittest, const char *expect, int elen, const char *fmt, ...) { va_list ap; int rand; char *p; - if (elen >= BUF_SIZE) { - pr_err("error in test suite: expected output length %d too long. Format was '%s'.\n", - elen, fmt); - failed_tests++; - return; - } + KUNIT_EXPECT_LT_MSG(kunittest, elen, BUF_SIZE, + "error in test suite: expected output length %d too long. Format was '%s'.\n", + elen, fmt); va_start(ap, fmt); @@ -112,49 +95,46 @@ __test(const char *expect, int elen, const char *fmt, ...) * enough and 0), and then we also test that kvasprintf would * be able to print it as expected. */ - failed_tests += do_test(BUF_SIZE, expect, elen, fmt, ap); + do_test(kunittest, BUF_SIZE, expect, elen, fmt, ap); rand = 1 + prandom_u32_max(elen+1); /* Since elen < BUF_SIZE, we have 1 <= rand <= BUF_SIZE. */ - failed_tests += do_test(rand, expect, elen, fmt, ap); - failed_tests += do_test(0, expect, elen, fmt, ap); + do_test(kunittest, rand, expect, elen, fmt, ap); + do_test(kunittest, 0, expect, elen, fmt, ap); p = kvasprintf(GFP_KERNEL, fmt, ap); if (p) { - total_tests++; - if (memcmp(p, expect, elen+1)) { - pr_warn("kvasprintf(..., \"%s\", ...) returned '%s', expected '%s'\n", + KUNIT_EXPECT_EQ_MSG(kunittest, memcmp(p, expect, elen+1), 0, + "kvasprintf(..., \"%s\", ...) returned '%s', expected '%s'\n", fmt, p, expect); - failed_tests++; - } kfree(p); } va_end(ap); } -#define test(expect, fmt, ...) \ - __test(expect, strlen(expect), fmt, ##__VA_ARGS__) +#define test(kunittest, expect, fmt, ...) \ + __test(kunittest, expect, strlen(expect), fmt, ##__VA_ARGS__) -static void __init -test_basic(void) +static void +test_basic(struct kunit *kunittest) { /* Work around annoying "warning: zero-length gnu_printf format string". */ char nul = '\0'; - test("", &nul); - test("100%", "100%%"); - test("xxx%yyy", "xxx%cyyy", '%'); - __test("xxx\0yyy", 7, "xxx%cyyy", '\0'); + test(kunittest, "", &nul); + test(kunittest, "100%", "100%%"); + test(kunittest, "xxx%yyy", "xxx%cyyy", '%'); + __test(kunittest, "xxx\0yyy", 7, "xxx%cyyy", '\0'); } -static void __init -test_number(void) +static void +test_number(struct kunit *kunittest) { - test("0x1234abcd ", "%#-12x", 0x1234abcd); - test(" 0x1234abcd", "%#12x", 0x1234abcd); - test("0|001| 12|+123| 1234|-123|-1234", "%d|%03d|%3d|%+d|% d|%+d|% d", 0, 1, 12, 123, 1234, -123, -1234); - test("0|1|1|128|255", "%hhu|%hhu|%hhu|%hhu|%hhu", 0, 1, 257, 128, -1); - test("0|1|1|-128|-1", "%hhd|%hhd|%hhd|%hhd|%hhd", 0, 1, 257, 128, -1); - test("2015122420151225", "%ho%ho%#ho", 1037, 5282, -11627); + test(kunittest, "0x1234abcd ", "%#-12x", 0x1234abcd); + test(kunittest, " 0x1234abcd", "%#12x", 0x1234abcd); + test(kunittest, "0|001| 12|+123| 1234|-123|-1234", "%d|%03d|%3d|%+d|% d|%+d|% d", 0, 1, 12, 123, 1234, -123, -1234); + test(kunittest, "0|1|1|128|255", "%hhu|%hhu|%hhu|%hhu|%hhu", 0, 1, 257, 128, -1); + test(kunittest, "0|1|1|-128|-1", "%hhd|%hhd|%hhd|%hhd|%hhd", 0, 1, 257, 128, -1); + test(kunittest, "2015122420151225", "%ho%ho%#ho", 1037, 5282, -11627); /* * POSIX/C99: »The result of converting zero with an explicit * precision of zero shall be no characters.« Hence the output @@ -163,7 +143,7 @@ test_number(void) * case. This test case simply documents the current * behaviour. */ - test("00|0|0|0|0", "%.2d|%.1d|%.0d|%.*d|%1.0d", 0, 0, 0, 0, 0, 0); + test(kunittest, "00|0|0|0|0", "%.2d|%.1d|%.0d|%.*d|%1.0d", 0, 0, 0, 0, 0, 0); #ifndef __CHAR_UNSIGNED__ { /* @@ -173,19 +153,19 @@ test_number(void) * with 0xff or cast to u8. */ char val = -16; - test("0xfffffff0|0xf0|0xf0", "%#02x|%#02x|%#02x", val, val & 0xff, (u8)val); + test(kunittest, "0xfffffff0|0xf0|0xf0", "%#02x|%#02x|%#02x", val, val & 0xff, (u8)val); } #endif } -static void __init -test_string(void) +static void +test_string(struct kunit *kunittest) { - test("", "%s%.0s", "", "123"); - test("ABCD|abc|123", "%s|%.3s|%.*s", "ABCD", "abcdef", 3, "123456"); - test("1 | 2|3 | 4|5 ", "%-3s|%3s|%-*s|%*s|%*s", "1", "2", 3, "3", 3, "4", -3, "5"); - test("1234 ", "%-10.4s", "123456"); - test(" 1234", "%10.4s", "123456"); + test(kunittest, "", "%s%.0s", "", "123"); + test(kunittest, "ABCD|abc|123", "%s|%.3s|%.*s", "ABCD", "abcdef", 3, "123456"); + test(kunittest, "1 | 2|3 | 4|5 ", "%-3s|%3s|%-*s|%*s|%*s", "1", "2", 3, "3", 3, "4", -3, "5"); + test(kunittest, "1234 ", "%-10.4s", "123456"); + test(kunittest, " 1234", "%10.4s", "123456"); /* * POSIX and C99 say that a negative precision (which is only * possible to pass via a * argument) should be treated as if @@ -199,10 +179,10 @@ test_string(void) * anyone ever feel the need to follow the standards more * closely, this can be revisited. */ - test(" ", "%4.*s", -5, "123456"); - test("123456", "%.s", "123456"); - test("a||", "%.s|%.0s|%.*s", "a", "b", 0, "c"); - test("a | | ", "%-3.s|%-3.0s|%-3.*s", "a", "b", 0, "c"); + test(kunittest, " ", "%4.*s", -5, "123456"); + test(kunittest, "123456", "%.s", "123456"); + test(kunittest, "a||", "%.s|%.0s|%.*s", "a", "b", 0, "c"); + test(kunittest, "a | | ", "%-3.s|%-3.0s|%-3.*s", "a", "b", 0, "c"); } #define PLAIN_BUF_SIZE 64 /* leave some space so we don't oops */ @@ -216,7 +196,7 @@ test_string(void) #define ZEROS "00000000" /* hex 32 zero bits */ #define ONES "ffffffff" /* hex 32 one bits */ -static int __init +static int plain_format(void) { char buf[PLAIN_BUF_SIZE]; @@ -248,7 +228,7 @@ plain_format(void) #define ZEROS "" #define ONES "" -static int __init +static int plain_format(void) { /* Format is implicitly tested for 32 bit machines by plain_hash() */ @@ -257,7 +237,7 @@ plain_format(void) #endif /* BITS_PER_LONG == 64 */ -static int __init +static int plain_hash_to_buffer(const void *p, char *buf, size_t len) { int nchars; @@ -276,7 +256,7 @@ plain_hash_to_buffer(const void *p, char *buf, size_t len) return 0; } -static int __init +static int plain_hash(void) { char buf[PLAIN_BUF_SIZE]; @@ -296,27 +276,20 @@ plain_hash(void) * We can't use test() to test %p because we don't know what output to expect * after an address is hashed. */ -static void __init -plain(void) +static void +plain(struct kunit *kunittest) { int err; err = plain_hash(); - if (err) { - pr_warn("plain 'p' does not appear to be hashed\n"); - failed_tests++; - return; - } + KUNIT_EXPECT_EQ_MSG(kunittest, err, 0, "plain 'p' does not appear to be hashed\n"); err = plain_format(); - if (err) { - pr_warn("hashing plain 'p' has unexpected format\n"); - failed_tests++; - } + KUNIT_EXPECT_EQ_MSG(kunittest, err, 0, "hashing plain 'p' has unexpected format\n"); } -static void __init -test_hashed(const char *fmt, const void *p) +static void +test_hashed(struct kunit *kunittest, const char *fmt, const void *p) { char buf[PLAIN_BUF_SIZE]; int ret; @@ -329,92 +302,92 @@ test_hashed(const char *fmt, const void *p) if (ret) return; - test(buf, fmt, p); + test(kunittest, buf, fmt, p); } /* * NULL pointers aren't hashed. */ -static void __init -null_pointer(void) +static void +null_pointer(struct kunit *kunittest) { - test(ZEROS "00000000", "%p", NULL); - test(ZEROS "00000000", "%px", NULL); - test("(null)", "%pE", NULL); + test(kunittest, ZEROS "00000000", "%p", NULL); + test(kunittest, ZEROS "00000000", "%px", NULL); + test(kunittest, "(null)", "%pE", NULL); } /* * Error pointers aren't hashed. */ -static void __init -error_pointer(void) +static void +error_pointer(struct kunit *kunittest) { - test(ONES "fffffff5", "%p", ERR_PTR(-11)); - test(ONES "fffffff5", "%px", ERR_PTR(-11)); - test("(efault)", "%pE", ERR_PTR(-11)); + test(kunittest, ONES "fffffff5", "%p", ERR_PTR(-11)); + test(kunittest, ONES "fffffff5", "%px", ERR_PTR(-11)); + test(kunittest, "(efault)", "%pE", ERR_PTR(-11)); } #define PTR_INVALID ((void *)0x000000ab) -static void __init -invalid_pointer(void) +static void +invalid_pointer(struct kunit *kunittest) { - test_hashed("%p", PTR_INVALID); - test(ZEROS "000000ab", "%px", PTR_INVALID); - test("(efault)", "%pE", PTR_INVALID); + test_hashed(kunittest, "%p", PTR_INVALID); + test(kunittest, ZEROS "000000ab", "%px", PTR_INVALID); + test(kunittest, "(efault)", "%pE", PTR_INVALID); } -static void __init -symbol_ptr(void) +static void +symbol_ptr(struct kunit *kunittest) { } -static void __init -kernel_ptr(void) +static void +kernel_ptr(struct kunit *kunittest) { /* We can't test this without access to kptr_restrict. */ } -static void __init -struct_resource(void) +static void +struct_resource(struct kunit *kunittest) { } -static void __init -addr(void) +static void +addr(struct kunit *kunittest) { } -static void __init -escaped_str(void) +static void +escaped_str(struct kunit *kunittest) { } -static void __init -hex_string(void) +static void +hex_string(struct kunit *kunittest) { const char buf[3] = {0xc0, 0xff, 0xee}; - test("c0 ff ee|c0:ff:ee|c0-ff-ee|c0ffee", + test(kunittest, "c0 ff ee|c0:ff:ee|c0-ff-ee|c0ffee", "%3ph|%3phC|%3phD|%3phN", buf, buf, buf, buf); - test("c0 ff ee|c0:ff:ee|c0-ff-ee|c0ffee", + test(kunittest, "c0 ff ee|c0:ff:ee|c0-ff-ee|c0ffee", "%*ph|%*phC|%*phD|%*phN", 3, buf, 3, buf, 3, buf, 3, buf); } -static void __init -mac(void) +static void +mac(struct kunit *kunittest) { const u8 addr[6] = {0x2d, 0x48, 0xd6, 0xfc, 0x7a, 0x05}; - test("2d:48:d6:fc:7a:05", "%pM", addr); - test("05:7a:fc:d6:48:2d", "%pMR", addr); - test("2d-48-d6-fc-7a-05", "%pMF", addr); - test("2d48d6fc7a05", "%pm", addr); - test("057afcd6482d", "%pmR", addr); + test(kunittest, "2d:48:d6:fc:7a:05", "%pM", addr); + test(kunittest, "05:7a:fc:d6:48:2d", "%pMR", addr); + test(kunittest, "2d-48-d6-fc-7a-05", "%pMF", addr); + test(kunittest, "2d48d6fc7a05", "%pm", addr); + test(kunittest, "057afcd6482d", "%pmR", addr); } -static void __init -ip4(void) +static void +ip4(struct kunit *kunittest) { struct sockaddr_in sa; @@ -422,34 +395,34 @@ ip4(void) sa.sin_port = cpu_to_be16(12345); sa.sin_addr.s_addr = cpu_to_be32(0x7f000001); - test("127.000.000.001|127.0.0.1", "%pi4|%pI4", &sa.sin_addr, &sa.sin_addr); - test("127.000.000.001|127.0.0.1", "%piS|%pIS", &sa, &sa); + test(kunittest, "127.000.000.001|127.0.0.1", "%pi4|%pI4", &sa.sin_addr, &sa.sin_addr); + test(kunittest, "127.000.000.001|127.0.0.1", "%piS|%pIS", &sa, &sa); sa.sin_addr.s_addr = cpu_to_be32(0x01020304); - test("001.002.003.004:12345|1.2.3.4:12345", "%piSp|%pISp", &sa, &sa); + test(kunittest, "001.002.003.004:12345|1.2.3.4:12345", "%piSp|%pISp", &sa, &sa); } -static void __init -ip6(void) +static void +ip6(struct kunit *kunittest) { } -static void __init -ip(void) +static void +ip(struct kunit *kunittest) { - ip4(); - ip6(); + ip4(kunittest); + ip6(kunittest); } -static void __init -uuid(void) +static void +uuid(struct kunit *kunittest) { const char uuid[16] = {0x0, 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7, 0x8, 0x9, 0xa, 0xb, 0xc, 0xd, 0xe, 0xf}; - test("00010203-0405-0607-0809-0a0b0c0d0e0f", "%pUb", uuid); - test("00010203-0405-0607-0809-0A0B0C0D0E0F", "%pUB", uuid); - test("03020100-0504-0706-0809-0a0b0c0d0e0f", "%pUl", uuid); - test("03020100-0504-0706-0809-0A0B0C0D0E0F", "%pUL", uuid); + test(kunittest, "00010203-0405-0607-0809-0a0b0c0d0e0f", "%pUb", uuid); + test(kunittest, "00010203-0405-0607-0809-0A0B0C0D0E0F", "%pUB", uuid); + test(kunittest, "03020100-0504-0706-0809-0a0b0c0d0e0f", "%pUl", uuid); + test(kunittest, "03020100-0504-0706-0809-0A0B0C0D0E0F", "%pUL", uuid); } static struct dentry test_dentry[4] __initdata = { @@ -467,34 +440,34 @@ static struct dentry test_dentry[4] __initdata = { .d_iname = "romeo" }, }; -static void __init -dentry(void) +static void +dentry(struct kunit *kunittest) { - test("foo", "%pd", &test_dentry[0]); - test("foo", "%pd2", &test_dentry[0]); + test(kunittest, "foo", "%pd", &test_dentry[0]); + test(kunittest, "foo", "%pd2", &test_dentry[0]); - test("(null)", "%pd", NULL); - test("(efault)", "%pd", PTR_INVALID); - test("(null)", "%pD", NULL); - test("(efault)", "%pD", PTR_INVALID); + test(kunittest, "(null)", "%pd", NULL); + test(kunittest, "(efault)", "%pd", PTR_INVALID); + test(kunittest, "(null)", "%pD", NULL); + test(kunittest, "(efault)", "%pD", PTR_INVALID); - test("romeo", "%pd", &test_dentry[3]); - test("alfa/romeo", "%pd2", &test_dentry[3]); - test("bravo/alfa/romeo", "%pd3", &test_dentry[3]); - test("/bravo/alfa/romeo", "%pd4", &test_dentry[3]); - test("/bravo/alfa", "%pd4", &test_dentry[2]); + test(kunittest, "romeo", "%pd", &test_dentry[3]); + test(kunittest, "alfa/romeo", "%pd2", &test_dentry[3]); + test(kunittest, "bravo/alfa/romeo", "%pd3", &test_dentry[3]); + test(kunittest, "/bravo/alfa/romeo", "%pd4", &test_dentry[3]); + test(kunittest, "/bravo/alfa", "%pd4", &test_dentry[2]); - test("bravo/alfa |bravo/alfa ", "%-12pd2|%*pd2", &test_dentry[2], -12, &test_dentry[2]); - test(" bravo/alfa| bravo/alfa", "%12pd2|%*pd2", &test_dentry[2], 12, &test_dentry[2]); + test(kunittest, "bravo/alfa |bravo/alfa ", "%-12pd2|%*pd2", &test_dentry[2], -12, &test_dentry[2]); + test(kunittest, " bravo/alfa| bravo/alfa", "%12pd2|%*pd2", &test_dentry[2], 12, &test_dentry[2]); } -static void __init -struct_va_format(void) +static void +struct_va_format(struct kunit *kunittest) { } -static void __init -time_and_date(void) +static void +time_and_date(struct kunit *kunittest) { /* 1543210543 */ const struct rtc_time tm = { @@ -508,27 +481,27 @@ time_and_date(void) /* 2019-01-04T15:32:23 */ time64_t t = 1546615943; - test("(%pt?)", "%pt", &tm); - test("2018-11-26T05:35:43", "%ptR", &tm); - test("0118-10-26T05:35:43", "%ptRr", &tm); - test("05:35:43|2018-11-26", "%ptRt|%ptRd", &tm, &tm); - test("05:35:43|0118-10-26", "%ptRtr|%ptRdr", &tm, &tm); - test("05:35:43|2018-11-26", "%ptRttr|%ptRdtr", &tm, &tm); - test("05:35:43 tr|2018-11-26 tr", "%ptRt tr|%ptRd tr", &tm, &tm); + test(kunittest, "(%pt?)", "%pt", &tm); + test(kunittest, "2018-11-26T05:35:43", "%ptR", &tm); + test(kunittest, "0118-10-26T05:35:43", "%ptRr", &tm); + test(kunittest, "05:35:43|2018-11-26", "%ptRt|%ptRd", &tm, &tm); + test(kunittest, "05:35:43|0118-10-26", "%ptRtr|%ptRdr", &tm, &tm); + test(kunittest, "05:35:43|2018-11-26", "%ptRttr|%ptRdtr", &tm, &tm); + test(kunittest, "05:35:43 tr|2018-11-26 tr", "%ptRt tr|%ptRd tr", &tm, &tm); - test("2019-01-04T15:32:23", "%ptT", &t); - test("0119-00-04T15:32:23", "%ptTr", &t); - test("15:32:23|2019-01-04", "%ptTt|%ptTd", &t, &t); - test("15:32:23|0119-00-04", "%ptTtr|%ptTdr", &t, &t); + test(kunittest, "2019-01-04T15:32:23", "%ptT", &t); + test(kunittest, "0119-00-04T15:32:23", "%ptTr", &t); + test(kunittest, "15:32:23|2019-01-04", "%ptTt|%ptTd", &t, &t); + test(kunittest, "15:32:23|0119-00-04", "%ptTtr|%ptTdr", &t, &t); } -static void __init -struct_clk(void) +static void +struct_clk(struct kunit *kunittest) { } -static void __init -large_bitmap(void) +static void +large_bitmap(struct kunit *kunittest) { const int nbits = 1 << 16; unsigned long *bits = bitmap_zalloc(nbits, GFP_KERNEL); @@ -537,69 +510,69 @@ large_bitmap(void) bitmap_set(bits, 1, 20); bitmap_set(bits, 60000, 15); - test("1-20,60000-60014", "%*pbl", nbits, bits); + test(kunittest, "1-20,60000-60014", "%*pbl", nbits, bits); bitmap_free(bits); } -static void __init -bitmap(void) +static void +bitmap(struct kunit *kunittest) { DECLARE_BITMAP(bits, 20); const int primes[] = {2,3,5,7,11,13,17,19}; int i; bitmap_zero(bits, 20); - test("00000|00000", "%20pb|%*pb", bits, 20, bits); - test("|", "%20pbl|%*pbl", bits, 20, bits); + test(kunittest, "00000|00000", "%20pb|%*pb", bits, 20, bits); + test(kunittest, "|", "%20pbl|%*pbl", bits, 20, bits); for (i = 0; i < ARRAY_SIZE(primes); ++i) set_bit(primes[i], bits); - test("a28ac|a28ac", "%20pb|%*pb", bits, 20, bits); - test("2-3,5,7,11,13,17,19|2-3,5,7,11,13,17,19", "%20pbl|%*pbl", bits, 20, bits); + test(kunittest, "a28ac|a28ac", "%20pb|%*pb", bits, 20, bits); + test(kunittest, "2-3,5,7,11,13,17,19|2-3,5,7,11,13,17,19", "%20pbl|%*pbl", bits, 20, bits); bitmap_fill(bits, 20); - test("fffff|fffff", "%20pb|%*pb", bits, 20, bits); - test("0-19|0-19", "%20pbl|%*pbl", bits, 20, bits); + test(kunittest, "fffff|fffff", "%20pb|%*pb", bits, 20, bits); + test(kunittest, "0-19|0-19", "%20pbl|%*pbl", bits, 20, bits); - large_bitmap(); + large_bitmap(kunittest); } -static void __init -netdev_features(void) +static void +netdev_features(struct kunit *kunittest) { } -static void __init -flags(void) +static void +flags(struct kunit *kunittest) { unsigned long flags; gfp_t gfp; char *cmp_buffer; flags = 0; - test("", "%pGp", &flags); + test(kunittest, "", "%pGp", &flags); /* Page flags should filter the zone id */ flags = 1UL << NR_PAGEFLAGS; - test("", "%pGp", &flags); + test(kunittest, "", "%pGp", &flags); flags |= 1UL << PG_uptodate | 1UL << PG_dirty | 1UL << PG_lru | 1UL << PG_active | 1UL << PG_swapbacked; - test("uptodate|dirty|lru|active|swapbacked", "%pGp", &flags); + test(kunittest, "uptodate|dirty|lru|active|swapbacked", "%pGp", &flags); flags = VM_READ | VM_EXEC | VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC | VM_DENYWRITE; - test("read|exec|mayread|maywrite|mayexec|denywrite", "%pGv", &flags); + test(kunittest, "read|exec|mayread|maywrite|mayexec|denywrite", "%pGv", &flags); gfp = GFP_TRANSHUGE; - test("GFP_TRANSHUGE", "%pGg", &gfp); + test(kunittest, "GFP_TRANSHUGE", "%pGg", &gfp); gfp = GFP_ATOMIC|__GFP_DMA; - test("GFP_ATOMIC|GFP_DMA", "%pGg", &gfp); + test(kunittest, "GFP_ATOMIC|GFP_DMA", "%pGg", &gfp); gfp = __GFP_ATOMIC; - test("__GFP_ATOMIC", "%pGg", &gfp); + test(kunittest, "__GFP_ATOMIC", "%pGg", &gfp); cmp_buffer = kmalloc(BUF_SIZE, GFP_KERNEL); if (!cmp_buffer) @@ -608,17 +581,17 @@ flags(void) /* Any flags not translated by the table should remain numeric */ gfp = ~__GFP_BITS_MASK; snprintf(cmp_buffer, BUF_SIZE, "%#lx", (unsigned long) gfp); - test(cmp_buffer, "%pGg", &gfp); + test(kunittest, cmp_buffer, "%pGg", &gfp); snprintf(cmp_buffer, BUF_SIZE, "__GFP_ATOMIC|%#lx", (unsigned long) gfp); gfp |= __GFP_ATOMIC; - test(cmp_buffer, "%pGg", &gfp); + test(kunittest, cmp_buffer, "%pGg", &gfp); kfree(cmp_buffer); } -static void __init fwnode_pointer(void) +static void fwnode_pointer(struct kunit *kunittest) { const struct software_node softnodes[] = { { .name = "first", }, @@ -638,79 +611,90 @@ static void __init fwnode_pointer(void) return; } - test(full_name_second, "%pfw", software_node_fwnode(&softnodes[1])); - test(full_name, "%pfw", software_node_fwnode(&softnodes[2])); - test(full_name, "%pfwf", software_node_fwnode(&softnodes[2])); - test(second_name, "%pfwP", software_node_fwnode(&softnodes[1])); - test(third_name, "%pfwP", software_node_fwnode(&softnodes[2])); + test(kunittest, full_name_second, "%pfw", software_node_fwnode(&softnodes[1])); + test(kunittest, full_name, "%pfw", software_node_fwnode(&softnodes[2])); + test(kunittest, full_name, "%pfwf", software_node_fwnode(&softnodes[2])); + test(kunittest, second_name, "%pfwP", software_node_fwnode(&softnodes[1])); + test(kunittest, third_name, "%pfwP", software_node_fwnode(&softnodes[2])); software_node_unregister(&softnodes[2]); software_node_unregister(&softnodes[1]); software_node_unregister(&softnodes[0]); } -static void __init -errptr(void) +static void +errptr(struct kunit *kunittest) { - test("-1234", "%pe", ERR_PTR(-1234)); + test(kunittest, "-1234", "%pe", ERR_PTR(-1234)); /* Check that %pe with a non-ERR_PTR gets treated as ordinary %p. */ BUILD_BUG_ON(IS_ERR(PTR)); - test_hashed("%pe", PTR); + test_hashed(kunittest, "%pe", PTR); #ifdef CONFIG_SYMBOLIC_ERRNAME - test("(-ENOTSOCK)", "(%pe)", ERR_PTR(-ENOTSOCK)); - test("(-EAGAIN)", "(%pe)", ERR_PTR(-EAGAIN)); + test(kunittest, "(-ENOTSOCK)", "(%pe)", ERR_PTR(-ENOTSOCK)); + test(kunittest, "(-EAGAIN)", "(%pe)", ERR_PTR(-EAGAIN)); BUILD_BUG_ON(EAGAIN != EWOULDBLOCK); - test("(-EAGAIN)", "(%pe)", ERR_PTR(-EWOULDBLOCK)); - test("[-EIO ]", "[%-8pe]", ERR_PTR(-EIO)); - test("[ -EIO]", "[%8pe]", ERR_PTR(-EIO)); - test("-EPROBE_DEFER", "%pe", ERR_PTR(-EPROBE_DEFER)); + test(kunittest, "(-EAGAIN)", "(%pe)", ERR_PTR(-EWOULDBLOCK)); + test(kunittest, "[-EIO ]", "[%-8pe]", ERR_PTR(-EIO)); + test(kunittest, "[ -EIO]", "[%8pe]", ERR_PTR(-EIO)); + test(kunittest, "-EPROBE_DEFER", "%pe", ERR_PTR(-EPROBE_DEFER)); #endif } -static void __init -test_pointer(void) -{ - plain(); - null_pointer(); - error_pointer(); - invalid_pointer(); - symbol_ptr(); - kernel_ptr(); - struct_resource(); - addr(); - escaped_str(); - hex_string(); - mac(); - ip(); - uuid(); - dentry(); - struct_va_format(); - time_and_date(); - struct_clk(); - bitmap(); - netdev_features(); - flags(); - errptr(); - fwnode_pointer(); -} - -static void __init selftest(void) +static void +test_pointer(struct kunit *kunittest) +{ + plain(kunittest); + null_pointer(kunittest); + error_pointer(kunittest); + invalid_pointer(kunittest); + symbol_ptr(kunittest); + kernel_ptr(kunittest); + struct_resource(kunittest); + addr(kunittest); + escaped_str(kunittest); + hex_string(kunittest); + mac(kunittest); + ip(kunittest); + uuid(kunittest); + dentry(kunittest); + struct_va_format(kunittest); + time_and_date(kunittest); + struct_clk(kunittest); + bitmap(kunittest); + netdev_features(kunittest); + flags(kunittest); + errptr(kunittest); + fwnode_pointer(kunittest); +} + +static void selftest(struct kunit *kunittest) { alloced_buffer = kmalloc(BUF_SIZE + 2*PAD_SIZE, GFP_KERNEL); if (!alloced_buffer) return; test_buffer = alloced_buffer + PAD_SIZE; - test_basic(); - test_number(); - test_string(); - test_pointer(); + test_basic(kunittest); + test_number(kunittest); + test_string(kunittest); + test_pointer(kunittest); kfree(alloced_buffer); } -KSTM_MODULE_LOADERS(test_printf); +static struct kunit_case printf_test_cases[] = { + KUNIT_CASE(selftest), + {} +}; + +static struct kunit_suite printf_test_suite = { + .name = "printf-kunit-test", + .test_cases = printf_test_cases, +}; + +kunit_test_suite(printf_test_suite); + MODULE_AUTHOR("Rasmus Villemoes <linux(a)rasmusvillemoes.dk>"); MODULE_LICENSE("GPL"); -- 2.25.1

5 years, 1 month

6
12
0 0

Disinfectant

by William Jones

Good morning, looking for companies interested in raising additional capital by diversifying their offer in soaps, liquids and gels for hand disinfection and cosmetics for body and hair care. The distribution of innovative products corresponding to the current preferences of customers in the field of hygiene and preventive healthcare allows our partners to gain new markets and achieve better economic results. In addition to products with bactericidal action, our range includes shower gels, shampoos and hair conditioners, as well as efficient, concentrated detergents. The versatility (suitable for all skin types) combined with an affordable price means that customers make an informed choice of a product among others available on the market. Are you interested in cooperation? William Jones

5 years, 1 month

1
0
0 0

[PATCHv3] selftests: rtnetlink: load fou module for kci_test_encap_fou() test

by Po-Hsu Lin

The kci_test_encap_fou() test from kci_test_encap() in rtnetlink.sh needs the fou module to work. Otherwise it will fail with: $ ip netns exec "$testns" ip fou add port 7777 ipproto 47 RTNETLINK answers: No such file or directory Error talking to the kernel Add the CONFIG_NET_FOU into the config file as well. Which needs at least to be set as a loadable module. Signed-off-by: Po-Hsu Lin <po-hsu.lin(a)canonical.com> --- tools/testing/selftests/net/config | 1 + tools/testing/selftests/net/rtnetlink.sh | 6 ++++++ 2 files changed, 7 insertions(+) diff --git a/tools/testing/selftests/net/config b/tools/testing/selftests/net/config index 3b42c06b..c5e50ab 100644 --- a/tools/testing/selftests/net/config +++ b/tools/testing/selftests/net/config @@ -31,3 +31,4 @@ CONFIG_NET_SCH_ETF=m CONFIG_NET_SCH_NETEM=y CONFIG_TEST_BLACKHOLE_DEV=m CONFIG_KALLSYMS=y +CONFIG_NET_FOU=m diff --git a/tools/testing/selftests/net/rtnetlink.sh b/tools/testing/selftests/net/rtnetlink.sh index 7c38a90..a711b3e 100755 --- a/tools/testing/selftests/net/rtnetlink.sh +++ b/tools/testing/selftests/net/rtnetlink.sh @@ -520,6 +520,11 @@ kci_test_encap_fou() return $ksft_skip fi + if ! /sbin/modprobe -q -n fou; then + echo "SKIP: module fou is not found" + return $ksft_skip + fi + /sbin/modprobe -q fou ip -netns "$testns" fou add port 7777 ipproto 47 2>/dev/null if [ $? -ne 0 ];then echo "FAIL: can't add fou port 7777, skipping test" @@ -540,6 +545,7 @@ kci_test_encap_fou() return 1 fi + /sbin/modprobe -q -r fou echo "PASS: fou" } -- 2.7.4

5 years, 1 month

2
6
0 0

[PATCH] Documentation: kunit: Update Kconfig parts for KUNIT's module support

by SeongJae Park

From: SeongJae Park <sjpark(a)amazon.de> If 'CONFIG_KUNIT=m', letting kunit tests that do not support loadable module build depends on 'KUNIT' instead of 'KUNIT=y' result in compile errors. This commit updates the document for this. Fixes: 9fe124bf1b77 ("kunit: allow kunit to be loaded as a module") Signed-off-by: SeongJae Park <sjpark(a)amazon.de> --- Documentation/dev-tools/kunit/start.rst | 2 +- Documentation/dev-tools/kunit/usage.rst | 5 +++++ 2 files changed, 6 insertions(+), 1 deletion(-) diff --git a/Documentation/dev-tools/kunit/start.rst b/Documentation/dev-tools/kunit/start.rst index d23385e3e159..454f307813ea 100644 --- a/Documentation/dev-tools/kunit/start.rst +++ b/Documentation/dev-tools/kunit/start.rst @@ -197,7 +197,7 @@ Now add the following to ``drivers/misc/Kconfig``: config MISC_EXAMPLE_TEST bool "Test for my example" - depends on MISC_EXAMPLE && KUNIT + depends on MISC_EXAMPLE && KUNIT=y and the following to ``drivers/misc/Makefile``: diff --git a/Documentation/dev-tools/kunit/usage.rst b/Documentation/dev-tools/kunit/usage.rst index 3c3fe8b5fecc..410380fc7fb4 100644 --- a/Documentation/dev-tools/kunit/usage.rst +++ b/Documentation/dev-tools/kunit/usage.rst @@ -556,6 +556,11 @@ Once the kernel is built and installed, a simple ...will run the tests. +.. note:: + Note that you should make your test depends on ``KUNIT=y`` in Kcofig if the + test does not support module build. Otherwise, it will trigger compile + errors if ``CONFIG_KUNIT`` is ``m``. + Writing new tests for other architectures ----------------------------------------- -- 2.17.1

5 years, 1 month

3
2
0 0

[PATCH v39 22/24] selftests/x86: Add a selftest for SGX

by Jarkko Sakkinen

Add a selftest for SGX. It is a trivial test where a simple enclave copies one 64-bit word of memory between two memory locations. Cc: Shuah Khan <shuah(a)kernel.org> Cc: linux-kselftest(a)vger.kernel.org Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen(a)linux.intel.com> --- tools/testing/selftests/Makefile | 1 + tools/testing/selftests/sgx/.gitignore | 2 + tools/testing/selftests/sgx/Makefile | 53 +++ tools/testing/selftests/sgx/call.S | 44 ++ tools/testing/selftests/sgx/defines.h | 21 + tools/testing/selftests/sgx/load.c | 277 ++++++++++++ tools/testing/selftests/sgx/main.c | 243 +++++++++++ tools/testing/selftests/sgx/main.h | 38 ++ tools/testing/selftests/sgx/sigstruct.c | 395 ++++++++++++++++++ tools/testing/selftests/sgx/test_encl.c | 20 + tools/testing/selftests/sgx/test_encl.lds | 40 ++ .../selftests/sgx/test_encl_bootstrap.S | 89 ++++ 12 files changed, 1223 insertions(+) create mode 100644 tools/testing/selftests/sgx/.gitignore create mode 100644 tools/testing/selftests/sgx/Makefile create mode 100644 tools/testing/selftests/sgx/call.S create mode 100644 tools/testing/selftests/sgx/defines.h create mode 100644 tools/testing/selftests/sgx/load.c create mode 100644 tools/testing/selftests/sgx/main.c create mode 100644 tools/testing/selftests/sgx/main.h create mode 100644 tools/testing/selftests/sgx/sigstruct.c create mode 100644 tools/testing/selftests/sgx/test_encl.c create mode 100644 tools/testing/selftests/sgx/test_encl.lds create mode 100644 tools/testing/selftests/sgx/test_encl_bootstrap.S diff --git a/tools/testing/selftests/Makefile b/tools/testing/selftests/Makefile index 9018f45d631d..fee80cda6304 100644 --- a/tools/testing/selftests/Makefile +++ b/tools/testing/selftests/Makefile @@ -68,6 +68,7 @@ TARGETS += user TARGETS += vm TARGETS += x86 TARGETS += zram +TARGETS += sgx #Please keep the TARGETS list alphabetically sorted # Run "make quicktest=1 run_tests" or # "make quicktest=1 kselftest" from top level Makefile diff --git a/tools/testing/selftests/sgx/.gitignore b/tools/testing/selftests/sgx/.gitignore new file mode 100644 index 000000000000..fbaf0bda9a92 --- /dev/null +++ b/tools/testing/selftests/sgx/.gitignore @@ -0,0 +1,2 @@ +test_sgx +test_encl.elf diff --git a/tools/testing/selftests/sgx/Makefile b/tools/testing/selftests/sgx/Makefile new file mode 100644 index 000000000000..95e5c4df8014 --- /dev/null +++ b/tools/testing/selftests/sgx/Makefile @@ -0,0 +1,53 @@ +top_srcdir = ../../../.. + +include ../lib.mk + +.PHONY: all clean + +CAN_BUILD_X86_64 := $(shell ../x86/check_cc.sh $(CC) \ + ../x86/trivial_64bit_program.c) + +ifndef OBJCOPY +OBJCOPY := $(CROSS_COMPILE)objcopy +endif + +INCLUDES := -I$(top_srcdir)/tools/include +HOST_CFLAGS := -Wall -Werror -g $(INCLUDES) -fPIC -z noexecstack +ENCL_CFLAGS := -Wall -Werror -static -nostdlib -nostartfiles -fPIC \ + -fno-stack-protector -mrdrnd $(INCLUDES) + +TEST_CUSTOM_PROGS := $(OUTPUT)/test_sgx $(OUTPUT)/test_encl.elf + +ifeq ($(CAN_BUILD_X86_64), 1) +all: $(TEST_CUSTOM_PROGS) +endif + +$(OUTPUT)/test_sgx: $(OUTPUT)/main.o \ + $(OUTPUT)/load.o \ + $(OUTPUT)/sigstruct.o \ + $(OUTPUT)/call.o + $(CC) $(HOST_CFLAGS) -o $@ $^ -lcrypto + +$(OUTPUT)/main.o: main.c + $(CC) $(HOST_CFLAGS) -c $< -o $@ + +$(OUTPUT)/load.o: load.c + $(CC) $(HOST_CFLAGS) -c $< -o $@ + +$(OUTPUT)/sigstruct.o: sigstruct.c + $(CC) $(HOST_CFLAGS) -c $< -o $@ + +$(OUTPUT)/call.o: call.S + $(CC) $(HOST_CFLAGS) -c $< -o $@ + +$(OUTPUT)/test_encl.elf: test_encl.lds test_encl.c test_encl_bootstrap.S + $(CC) $(ENCL_CFLAGS) -T $^ -o $@ + +EXTRA_CLEAN := \ + $(OUTPUT)/test_encl.elf \ + $(OUTPUT)/load.o \ + $(OUTPUT)/call.o \ + $(OUTPUT)/main.o \ + $(OUTPUT)/sigstruct.o \ + $(OUTPUT)/test_sgx \ + $(OUTPUT)/test_sgx.o \ diff --git a/tools/testing/selftests/sgx/call.S b/tools/testing/selftests/sgx/call.S new file mode 100644 index 000000000000..f640532cda93 --- /dev/null +++ b/tools/testing/selftests/sgx/call.S @@ -0,0 +1,44 @@ +/* SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause) */ +/** +* Copyright(c) 2016-18 Intel Corporation. +*/ + + .text + + .global sgx_call_vdso +sgx_call_vdso: + .cfi_startproc + push %r15 + .cfi_adjust_cfa_offset 8 + .cfi_rel_offset %r15, 0 + push %r14 + .cfi_adjust_cfa_offset 8 + .cfi_rel_offset %r14, 0 + push %r13 + .cfi_adjust_cfa_offset 8 + .cfi_rel_offset %r13, 0 + push %r12 + .cfi_adjust_cfa_offset 8 + .cfi_rel_offset %r12, 0 + push %rbx + .cfi_adjust_cfa_offset 8 + .cfi_rel_offset %rbx, 0 + push $0 + .cfi_adjust_cfa_offset 8 + push 0x38(%rsp) + .cfi_adjust_cfa_offset 8 + call *eenter(%rip) + add $0x10, %rsp + .cfi_adjust_cfa_offset -0x10 + pop %rbx + .cfi_adjust_cfa_offset -8 + pop %r12 + .cfi_adjust_cfa_offset -8 + pop %r13 + .cfi_adjust_cfa_offset -8 + pop %r14 + .cfi_adjust_cfa_offset -8 + pop %r15 + .cfi_adjust_cfa_offset -8 + ret + .cfi_endproc diff --git a/tools/testing/selftests/sgx/defines.h b/tools/testing/selftests/sgx/defines.h new file mode 100644 index 000000000000..be8969922804 --- /dev/null +++ b/tools/testing/selftests/sgx/defines.h @@ -0,0 +1,21 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright(c) 2016-19 Intel Corporation. + */ + +#ifndef DEFINES_H +#define DEFINES_H + +#include <stdint.h> + +#define PAGE_SIZE 4096 +#define PAGE_MASK (~(PAGE_SIZE - 1)) + +#define __aligned(x) __attribute__((__aligned__(x))) +#define __packed __attribute__((packed)) + +#include "../../../../arch/x86/kernel/cpu/sgx/arch.h" +#include "../../../../arch/x86/include/asm/enclu.h" +#include "../../../../arch/x86/include/uapi/asm/sgx.h" + +#endif /* DEFINES_H */ diff --git a/tools/testing/selftests/sgx/load.c b/tools/testing/selftests/sgx/load.c new file mode 100644 index 000000000000..8ce0c4ac9a49 --- /dev/null +++ b/tools/testing/selftests/sgx/load.c @@ -0,0 +1,277 @@ +// SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause) +// Copyright(c) 2016-18 Intel Corporation. + +#include <assert.h> +#include <elf.h> +#include <errno.h> +#include <fcntl.h> +#include <stdbool.h> +#include <stdio.h> +#include <stdint.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> +#include <sys/ioctl.h> +#include <sys/mman.h> +#include <sys/stat.h> +#include <sys/time.h> +#include <sys/types.h> +#include "defines.h" +#include "main.h" + +void encl_delete(struct encl *encl) +{ + if (encl->encl_base) + munmap((void *)encl->encl_base, encl->encl_size); + + if (encl->bin) + munmap(encl->bin, encl->bin_size); + + if (encl->fd) + close(encl->fd); + + if (encl->segment_tbl) + free(encl->segment_tbl); + + memset(encl, 0, sizeof(*encl)); +} + +static bool encl_map_bin(const char *path, struct encl *encl) +{ + struct stat sb; + void *bin; + int ret; + int fd; + + fd = open(path, O_RDONLY); + if (fd == -1) { + perror("open()"); + return false; + } + + ret = stat(path, &sb); + if (ret) { + perror("stat()"); + goto err; + } + + bin = mmap(NULL, sb.st_size, PROT_READ, MAP_PRIVATE, fd, 0); + if (bin == MAP_FAILED) { + perror("mmap()"); + goto err; + } + + encl->bin = bin; + encl->bin_size = sb.st_size; + + close(fd); + return true; + +err: + close(fd); + return false; +} + +static bool encl_ioc_create(struct encl *encl) +{ + struct sgx_secs *secs = &encl->secs; + struct sgx_enclave_create ioc; + int rc; + + assert(encl->encl_base != 0); + + memset(secs, 0, sizeof(*secs)); + secs->ssa_frame_size = 1; + secs->attributes = SGX_ATTR_MODE64BIT; + secs->xfrm = 3; + secs->base = encl->encl_base; + secs->size = encl->encl_size; + + ioc.src = (unsigned long)secs; + rc = ioctl(encl->fd, SGX_IOC_ENCLAVE_CREATE, &ioc); + if (rc) { + fprintf(stderr, "SGX_IOC_ENCLAVE_CREATE failed: errno=%d\n", + errno); + munmap((void *)secs->base, encl->encl_size); + return false; + } + + return true; +} + +static bool encl_ioc_add_pages(struct encl *encl, struct encl_segment *seg) +{ + struct sgx_enclave_add_pages ioc; + struct sgx_secinfo secinfo; + int rc; + + memset(&secinfo, 0, sizeof(secinfo)); + secinfo.flags = seg->flags; + + ioc.src = (uint64_t)encl->src + seg->offset; + ioc.offset = seg->offset; + ioc.length = seg->size; + ioc.secinfo = (unsigned long)&secinfo; + ioc.flags = SGX_PAGE_MEASURE; + + rc = ioctl(encl->fd, SGX_IOC_ENCLAVE_ADD_PAGES, &ioc); + if (rc < 0) { + fprintf(stderr, "SGX_IOC_ENCLAVE_ADD_PAGES failed: errno=%d.\n", + errno); + return false; + } + + return true; +} + +bool encl_load(const char *path, struct encl *encl) +{ + Elf64_Phdr *phdr_tbl; + off_t src_offset; + Elf64_Ehdr *ehdr; + int i, j; + int ret; + + memset(encl, 0, sizeof(*encl)); + + ret = open("/dev/sgx/enclave", O_RDWR); + if (ret < 0) { + fprintf(stderr, "Unable to open /dev/sgx\n"); + goto err; + } + + encl->fd = ret; + + if (!encl_map_bin(path, encl)) + goto err; + + ehdr = encl->bin; + phdr_tbl = encl->bin + ehdr->e_phoff; + + for (i = 0; i < ehdr->e_phnum; i++) { + Elf64_Phdr *phdr = &phdr_tbl[i]; + + if (phdr->p_type == PT_LOAD) + encl->nr_segments++; + } + + encl->segment_tbl = calloc(encl->nr_segments, + sizeof(struct encl_segment)); + if (!encl->segment_tbl) + goto err; + + for (i = 0, j = 0; i < ehdr->e_phnum; i++) { + Elf64_Phdr *phdr = &phdr_tbl[i]; + unsigned int flags = phdr->p_flags; + struct encl_segment *seg; + + if (phdr->p_type != PT_LOAD) + continue; + + seg = &encl->segment_tbl[j]; + + if (!!(flags & ~(PF_R | PF_W | PF_X))) { + fprintf(stderr, + "%d has invalid segment flags 0x%02x.\n", i, + phdr->p_flags); + goto err; + } + + if (j == 0 && flags != (PF_R | PF_W)) { + fprintf(stderr, + "TCS has invalid segment flags 0x%02x.\n", + phdr->p_flags); + goto err; + } + + if (j == 0) { + src_offset = (phdr->p_offset & PAGE_MASK) - src_offset; + + seg->prot = PROT_READ | PROT_WRITE; + seg->flags = SGX_PAGE_TYPE_TCS << 8; + } else { + seg->prot = (phdr->p_flags & PF_R) ? PROT_READ : 0; + seg->prot |= (phdr->p_flags & PF_W) ? PROT_WRITE : 0; + seg->prot |= (phdr->p_flags & PF_X) ? PROT_EXEC : 0; + seg->flags = (SGX_PAGE_TYPE_REG << 8) | seg->prot; + } + + seg->offset = (phdr->p_offset & PAGE_MASK) - src_offset; + seg->size = (phdr->p_filesz + PAGE_SIZE - 1) & PAGE_MASK; + + printf("0x%016lx 0x%016lx 0x%02x\n", seg->offset, seg->size, + seg->prot); + + j++; + } + + assert(j == encl->nr_segments); + + encl->src = encl->bin + src_offset; + encl->src_size = encl->segment_tbl[j - 1].offset + + encl->segment_tbl[j - 1].size; + + for (encl->encl_size = 4096; encl->encl_size < encl->src_size; ) + encl->encl_size <<= 1; + + return true; + +err: + encl_delete(encl); + return false; +} + +static bool encl_map_area(struct encl *encl) +{ + size_t encl_size = encl->encl_size; + void *area; + + area = mmap(NULL, encl_size * 2, PROT_NONE, + MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); + if (area == MAP_FAILED) { + perror("mmap"); + return false; + } + + encl->encl_base = ((uint64_t)area + encl_size - 1) & ~(encl_size - 1); + + munmap(area, encl->encl_base - (uint64_t)area); + munmap((void *)(encl->encl_base + encl_size), + (uint64_t)area + encl_size - encl->encl_base); + + return true; +} + +bool encl_build(struct encl *encl) +{ + struct sgx_enclave_init ioc; + int ret; + int i; + + if (!encl_map_area(encl)) + return false; + + if (!encl_ioc_create(encl)) + return false; + + /* + * Pages must be added before mapping VMAs because their permissions + * cap the VMA permissions. + */ + for (i = 0; i < encl->nr_segments; i++) { + struct encl_segment *seg = &encl->segment_tbl[i]; + + if (!encl_ioc_add_pages(encl, seg)) + return false; + } + + ioc.sigstruct = (uint64_t)&encl->sigstruct; + ret = ioctl(encl->fd, SGX_IOC_ENCLAVE_INIT, &ioc); + if (ret) { + fprintf(stderr, "SGX_IOC_ENCLAVE_INIT failed: errno=%d\n", + errno); + return false; + } + + return true; +} diff --git a/tools/testing/selftests/sgx/main.c b/tools/testing/selftests/sgx/main.c new file mode 100644 index 000000000000..26e00f176535 --- /dev/null +++ b/tools/testing/selftests/sgx/main.c @@ -0,0 +1,243 @@ +// SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause) +// Copyright(c) 2016-18 Intel Corporation. + +#include <elf.h> +#include <errno.h> +#include <fcntl.h> +#include <stdbool.h> +#include <stdio.h> +#include <stdint.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> +#include <sys/ioctl.h> +#include <sys/mman.h> +#include <sys/stat.h> +#include <sys/time.h> +#include <sys/types.h> +#include "defines.h" +#include "main.h" + +static const uint64_t MAGIC = 0x1122334455667788ULL; +vdso_sgx_enter_enclave_t eenter; + +struct vdso_symtab { + Elf64_Sym *elf_symtab; + const char *elf_symstrtab; + Elf64_Word *elf_hashtab; +}; + +static void *vdso_get_base_addr(char *envp[]) +{ + Elf64_auxv_t *auxv; + int i; + + for (i = 0; envp[i]; i++) + ; + + auxv = (Elf64_auxv_t *)&envp[i + 1]; + + for (i = 0; auxv[i].a_type != AT_NULL; i++) { + if (auxv[i].a_type == AT_SYSINFO_EHDR) + return (void *)auxv[i].a_un.a_val; + } + + return NULL; +} + +static Elf64_Dyn *vdso_get_dyntab(void *addr) +{ + Elf64_Ehdr *ehdr = addr; + Elf64_Phdr *phdrtab = addr + ehdr->e_phoff; + int i; + + for (i = 0; i < ehdr->e_phnum; i++) + if (phdrtab[i].p_type == PT_DYNAMIC) + return addr + phdrtab[i].p_offset; + + return NULL; +} + +static void *vdso_get_dyn(void *addr, Elf64_Dyn *dyntab, Elf64_Sxword tag) +{ + int i; + + for (i = 0; dyntab[i].d_tag != DT_NULL; i++) + if (dyntab[i].d_tag == tag) + return addr + dyntab[i].d_un.d_ptr; + + return NULL; +} + +static bool vdso_get_symtab(void *addr, struct vdso_symtab *symtab) +{ + Elf64_Dyn *dyntab = vdso_get_dyntab(addr); + + symtab->elf_symtab = vdso_get_dyn(addr, dyntab, DT_SYMTAB); + if (!symtab->elf_symtab) + return false; + + symtab->elf_symstrtab = vdso_get_dyn(addr, dyntab, DT_STRTAB); + if (!symtab->elf_symstrtab) + return false; + + symtab->elf_hashtab = vdso_get_dyn(addr, dyntab, DT_HASH); + if (!symtab->elf_hashtab) + return false; + + return true; +} + +static unsigned long elf_sym_hash(const char *name) +{ + unsigned long h = 0, high; + + while (*name) { + h = (h << 4) + *name++; + high = h & 0xf0000000; + + if (high) + h ^= high >> 24; + + h &= ~high; + } + + return h; +} + +static Elf64_Sym *vdso_symtab_get(struct vdso_symtab *symtab, const char *name) +{ + Elf64_Word bucketnum = symtab->elf_hashtab[0]; + Elf64_Word *buckettab = &symtab->elf_hashtab[2]; + Elf64_Word *chaintab = &symtab->elf_hashtab[2 + bucketnum]; + Elf64_Sym *sym; + Elf64_Word i; + + for (i = buckettab[elf_sym_hash(name) % bucketnum]; i != STN_UNDEF; + i = chaintab[i]) { + sym = &symtab->elf_symtab[i]; + if (!strcmp(name, &symtab->elf_symstrtab[sym->st_name])) + return sym; + } + + return NULL; +} + +bool report_results(struct sgx_enclave_run *run, int ret, uint64_t result, + const char *test) +{ + bool valid = true; + + if (ret) { + printf("FAIL: %s() returned: %d\n", test, ret); + valid = false; + } + + if (run->leaf != EEXIT) { + printf("FAIL: %s() leaf, expected: %u, got: %u\n", test, EEXIT, + run->leaf); + valid = false; + } + + if (result != MAGIC) { + printf("FAIL: %s(), expected: 0x%lx, got: 0x%lx\n", test, MAGIC, + result); + valid = false; + } + + if (run->user_data) { + printf("FAIL: %s() user data, expected: 0x0, got: 0x%llx\n", + test, run->user_data); + valid = false; + } + + return valid; +} + +static int user_handler(long rdi, long rsi, long rdx, long ursp, long r8, long r9, + struct sgx_enclave_run *run) +{ + run->user_data = 0; + return 0; +} + +int main(int argc, char *argv[], char *envp[]) +{ + struct sgx_enclave_run run; + struct vdso_symtab symtab; + Elf64_Sym *eenter_sym; + uint64_t result = 0; + struct encl encl; + unsigned int i; + void *addr; + int ret; + + memset(&run, 0, sizeof(run)); + + if (!encl_load("test_encl.elf", &encl)) + goto err; + + if (!encl_measure(&encl)) + goto err; + + if (!encl_build(&encl)) + goto err; + + /* + * An enclave consumer only must do this. + */ + for (i = 0; i < encl.nr_segments; i++) { + struct encl_segment *seg = &encl.segment_tbl[i]; + + addr = mmap((void *)encl.encl_base + seg->offset, seg->size, + seg->prot, MAP_SHARED | MAP_FIXED, encl.fd, 0); + if (addr == MAP_FAILED) { + fprintf(stderr, "mmap() failed, errno=%d.\n", errno); + exit(1); + } + } + + memset(&run, 0, sizeof(run)); + run.tcs = encl.encl_base; + + addr = vdso_get_base_addr(envp); + if (!addr) + goto err; + + if (!vdso_get_symtab(addr, &symtab)) + goto err; + + eenter_sym = vdso_symtab_get(&symtab, "__vdso_sgx_enter_enclave"); + if (!eenter_sym) + goto err; + + eenter = addr + eenter_sym->st_value; + + ret = sgx_call_vdso((void *)&MAGIC, &result, 0, EENTER, NULL, NULL, &run); + if (!report_results(&run, ret, result, "sgx_call_vdso")) + goto err; + + + /* Invoke the vDSO directly. */ + result = 0; + ret = eenter((unsigned long)&MAGIC, (unsigned long)&result, 0, EENTER, + 0, 0, &run); + if (!report_results(&run, ret, result, "eenter")) + goto err; + + /* And with an exit handler. */ + run.user_handler = (__u64)user_handler; + run.user_data = 0xdeadbeef; + ret = eenter((unsigned long)&MAGIC, (unsigned long)&result, 0, EENTER, + 0, 0, &run); + if (!report_results(&run, ret, result, "user_handler")) + goto err; + + printf("SUCCESS\n"); + encl_delete(&encl); + exit(0); + +err: + encl_delete(&encl); + exit(1); +} diff --git a/tools/testing/selftests/sgx/main.h b/tools/testing/selftests/sgx/main.h new file mode 100644 index 000000000000..2b4777942500 --- /dev/null +++ b/tools/testing/selftests/sgx/main.h @@ -0,0 +1,38 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright(c) 2016-19 Intel Corporation. + */ + +#ifndef MAIN_H +#define MAIN_H + +struct encl_segment { + off_t offset; + size_t size; + unsigned int prot; + unsigned int flags; +}; + +struct encl { + int fd; + void *bin; + off_t bin_size; + void *src; + size_t src_size; + size_t encl_size; + off_t encl_base; + unsigned int nr_segments; + struct encl_segment *segment_tbl; + struct sgx_secs secs; + struct sgx_sigstruct sigstruct; +}; + +void encl_delete(struct encl *ctx); +bool encl_load(const char *path, struct encl *encl); +bool encl_measure(struct encl *encl); +bool encl_build(struct encl *encl); + +int sgx_call_vdso(void *rdi, void *rsi, long rdx, u32 leaf, void *r8, void *r9, + struct sgx_enclave_run *run); + +#endif /* MAIN_H */ diff --git a/tools/testing/selftests/sgx/sigstruct.c b/tools/testing/selftests/sgx/sigstruct.c new file mode 100644 index 000000000000..ceddad478672 --- /dev/null +++ b/tools/testing/selftests/sgx/sigstruct.c @@ -0,0 +1,395 @@ +// SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause) +// Copyright(c) 2016-18 Intel Corporation. + +#define _GNU_SOURCE +#include <assert.h> +#include <getopt.h> +#include <stdbool.h> +#include <stdint.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <sys/stat.h> +#include <sys/types.h> +#include <unistd.h> +#include <openssl/err.h> +#include <openssl/pem.h> +#include "defines.h" +#include "main.h" + +struct q1q2_ctx { + BN_CTX *bn_ctx; + BIGNUM *m; + BIGNUM *s; + BIGNUM *q1; + BIGNUM *qr; + BIGNUM *q2; +}; + +static void free_q1q2_ctx(struct q1q2_ctx *ctx) +{ + BN_CTX_free(ctx->bn_ctx); + BN_free(ctx->m); + BN_free(ctx->s); + BN_free(ctx->q1); + BN_free(ctx->qr); + BN_free(ctx->q2); +} + +static bool alloc_q1q2_ctx(const uint8_t *s, const uint8_t *m, + struct q1q2_ctx *ctx) +{ + ctx->bn_ctx = BN_CTX_new(); + ctx->s = BN_bin2bn(s, SGX_MODULUS_SIZE, NULL); + ctx->m = BN_bin2bn(m, SGX_MODULUS_SIZE, NULL); + ctx->q1 = BN_new(); + ctx->qr = BN_new(); + ctx->q2 = BN_new(); + + if (!ctx->bn_ctx || !ctx->s || !ctx->m || !ctx->q1 || !ctx->qr || + !ctx->q2) { + free_q1q2_ctx(ctx); + return false; + } + + return true; +} + +static bool calc_q1q2(const uint8_t *s, const uint8_t *m, uint8_t *q1, + uint8_t *q2) +{ + struct q1q2_ctx ctx; + + if (!alloc_q1q2_ctx(s, m, &ctx)) { + fprintf(stderr, "Not enough memory for Q1Q2 calculation\n"); + return false; + } + + if (!BN_mul(ctx.q1, ctx.s, ctx.s, ctx.bn_ctx)) + goto out; + + if (!BN_div(ctx.q1, ctx.qr, ctx.q1, ctx.m, ctx.bn_ctx)) + goto out; + + if (BN_num_bytes(ctx.q1) > SGX_MODULUS_SIZE) { + fprintf(stderr, "Too large Q1 %d bytes\n", + BN_num_bytes(ctx.q1)); + goto out; + } + + if (!BN_mul(ctx.q2, ctx.s, ctx.qr, ctx.bn_ctx)) + goto out; + + if (!BN_div(ctx.q2, NULL, ctx.q2, ctx.m, ctx.bn_ctx)) + goto out; + + if (BN_num_bytes(ctx.q2) > SGX_MODULUS_SIZE) { + fprintf(stderr, "Too large Q2 %d bytes\n", + BN_num_bytes(ctx.q2)); + goto out; + } + + BN_bn2bin(ctx.q1, q1); + BN_bn2bin(ctx.q2, q2); + + free_q1q2_ctx(&ctx); + return true; +out: + free_q1q2_ctx(&ctx); + return false; +} + +struct sgx_sigstruct_payload { + struct sgx_sigstruct_header header; + struct sgx_sigstruct_body body; +}; + +static bool check_crypto_errors(void) +{ + int err; + bool had_errors = false; + const char *filename; + int line; + char str[256]; + + for ( ; ; ) { + if (ERR_peek_error() == 0) + break; + + had_errors = true; + err = ERR_get_error_line(&filename, &line); + ERR_error_string_n(err, str, sizeof(str)); + fprintf(stderr, "crypto: %s: %s:%d\n", str, filename, line); + } + + return had_errors; +} + +static inline const BIGNUM *get_modulus(RSA *key) +{ +#if OPENSSL_VERSION_NUMBER < 0x10100000L + return key->n; +#else + const BIGNUM *n; + + RSA_get0_key(key, &n, NULL, NULL); + return n; +#endif +} + +static RSA *gen_sign_key(void) +{ + BIGNUM *e; + RSA *key; + int ret; + + e = BN_new(); + key = RSA_new(); + + if (!e || !key) + goto err; + + ret = BN_set_word(e, RSA_3); + if (ret != 1) + goto err; + + ret = RSA_generate_key_ex(key, 3072, e, NULL); + if (ret != 1) + goto err; + + BN_free(e); + + return key; + +err: + RSA_free(key); + BN_free(e); + + return NULL; +} + +static void reverse_bytes(void *data, int length) +{ + int i = 0; + int j = length - 1; + uint8_t temp; + uint8_t *ptr = data; + + while (i < j) { + temp = ptr[i]; + ptr[i] = ptr[j]; + ptr[j] = temp; + i++; + j--; + } +} + +enum mrtags { + MRECREATE = 0x0045544145524345, + MREADD = 0x0000000044444145, + MREEXTEND = 0x00444E4554584545, +}; + +static bool mrenclave_update(EVP_MD_CTX *ctx, const void *data) +{ + if (!EVP_DigestUpdate(ctx, data, 64)) { + fprintf(stderr, "digest update failed\n"); + return false; + } + + return true; +} + +static bool mrenclave_commit(EVP_MD_CTX *ctx, uint8_t *mrenclave) +{ + unsigned int size; + + if (!EVP_DigestFinal_ex(ctx, (unsigned char *)mrenclave, &size)) { + fprintf(stderr, "digest commit failed\n"); + return false; + } + + if (size != 32) { + fprintf(stderr, "invalid digest size = %u\n", size); + return false; + } + + return true; +} + +struct mrecreate { + uint64_t tag; + uint32_t ssaframesize; + uint64_t size; + uint8_t reserved[44]; +} __attribute__((__packed__)); + + +static bool mrenclave_ecreate(EVP_MD_CTX *ctx, uint64_t blob_size) +{ + struct mrecreate mrecreate; + uint64_t encl_size; + + for (encl_size = 0x1000; encl_size < blob_size; ) + encl_size <<= 1; + + memset(&mrecreate, 0, sizeof(mrecreate)); + mrecreate.tag = MRECREATE; + mrecreate.ssaframesize = 1; + mrecreate.size = encl_size; + + if (!EVP_DigestInit_ex(ctx, EVP_sha256(), NULL)) + return false; + + return mrenclave_update(ctx, &mrecreate); +} + +struct mreadd { + uint64_t tag; + uint64_t offset; + uint64_t flags; /* SECINFO flags */ + uint8_t reserved[40]; +} __attribute__((__packed__)); + +static bool mrenclave_eadd(EVP_MD_CTX *ctx, uint64_t offset, uint64_t flags) +{ + struct mreadd mreadd; + + memset(&mreadd, 0, sizeof(mreadd)); + mreadd.tag = MREADD; + mreadd.offset = offset; + mreadd.flags = flags; + + return mrenclave_update(ctx, &mreadd); +} + +struct mreextend { + uint64_t tag; + uint64_t offset; + uint8_t reserved[48]; +} __attribute__((__packed__)); + +static bool mrenclave_eextend(EVP_MD_CTX *ctx, uint64_t offset, + const uint8_t *data) +{ + struct mreextend mreextend; + int i; + + for (i = 0; i < 0x1000; i += 0x100) { + memset(&mreextend, 0, sizeof(mreextend)); + mreextend.tag = MREEXTEND; + mreextend.offset = offset + i; + + if (!mrenclave_update(ctx, &mreextend)) + return false; + + if (!mrenclave_update(ctx, &data[i + 0x00])) + return false; + + if (!mrenclave_update(ctx, &data[i + 0x40])) + return false; + + if (!mrenclave_update(ctx, &data[i + 0x80])) + return false; + + if (!mrenclave_update(ctx, &data[i + 0xC0])) + return false; + } + + return true; +} + +static bool mrenclave_segment(EVP_MD_CTX *ctx, struct encl *encl, + struct encl_segment *seg) +{ + uint64_t end = seg->offset + seg->size; + uint64_t offset; + + for (offset = seg->offset; offset < end; offset += PAGE_SIZE) { + if (!mrenclave_eadd(ctx, offset, seg->flags)) + return false; + + if (!mrenclave_eextend(ctx, offset, encl->src + offset)) + return false; + } + + return true; +} + +bool encl_measure(struct encl *encl) +{ + uint64_t header1[2] = {0x000000E100000006, 0x0000000000010000}; + uint64_t header2[2] = {0x0000006000000101, 0x0000000100000060}; + struct sgx_sigstruct *sigstruct = &encl->sigstruct; + struct sgx_sigstruct_payload payload; + uint8_t digest[SHA256_DIGEST_LENGTH]; + unsigned int siglen; + RSA *key = NULL; + EVP_MD_CTX *ctx; + int i; + + memset(sigstruct, 0, sizeof(*sigstruct)); + + sigstruct->header.header1[0] = header1[0]; + sigstruct->header.header1[1] = header1[1]; + sigstruct->header.header2[0] = header2[0]; + sigstruct->header.header2[1] = header2[1]; + sigstruct->exponent = 3; + sigstruct->body.attributes = SGX_ATTR_MODE64BIT; + sigstruct->body.xfrm = 3; + + /* sanity check */ + if (check_crypto_errors()) + goto err; + + key = gen_sign_key(); + if (!key) + goto err; + + BN_bn2bin(get_modulus(key), sigstruct->modulus); + + ctx = EVP_MD_CTX_create(); + if (!ctx) + goto err; + + if (!mrenclave_ecreate(ctx, encl->src_size)) + goto err; + + for (i = 0; i < encl->nr_segments; i++) { + struct encl_segment *seg = &encl->segment_tbl[i]; + + if (!mrenclave_segment(ctx, encl, seg)) + goto err; + } + + if (!mrenclave_commit(ctx, sigstruct->body.mrenclave)) + goto err; + + memcpy(&payload.header, &sigstruct->header, sizeof(sigstruct->header)); + memcpy(&payload.body, &sigstruct->body, sizeof(sigstruct->body)); + + SHA256((unsigned char *)&payload, sizeof(payload), digest); + + if (!RSA_sign(NID_sha256, digest, SHA256_DIGEST_LENGTH, + sigstruct->signature, &siglen, key)) + goto err; + + if (!calc_q1q2(sigstruct->signature, sigstruct->modulus, sigstruct->q1, + sigstruct->q2)) + goto err; + + /* BE -> LE */ + reverse_bytes(sigstruct->signature, SGX_MODULUS_SIZE); + reverse_bytes(sigstruct->modulus, SGX_MODULUS_SIZE); + reverse_bytes(sigstruct->q1, SGX_MODULUS_SIZE); + reverse_bytes(sigstruct->q2, SGX_MODULUS_SIZE); + + EVP_MD_CTX_destroy(ctx); + RSA_free(key); + return true; + +err: + EVP_MD_CTX_destroy(ctx); + RSA_free(key); + return false; +} diff --git a/tools/testing/selftests/sgx/test_encl.c b/tools/testing/selftests/sgx/test_encl.c new file mode 100644 index 000000000000..ede915399742 --- /dev/null +++ b/tools/testing/selftests/sgx/test_encl.c @@ -0,0 +1,20 @@ +// SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause) +// Copyright(c) 2016-18 Intel Corporation. + +#include <stddef.h> +#include "defines.h" + +static void *memcpy(void *dest, const void *src, size_t n) +{ + size_t i; + + for (i = 0; i < n; i++) + ((char *)dest)[i] = ((char *)src)[i]; + + return dest; +} + +void encl_body(void *rdi, void *rsi) +{ + memcpy(rsi, rdi, 8); +} diff --git a/tools/testing/selftests/sgx/test_encl.lds b/tools/testing/selftests/sgx/test_encl.lds new file mode 100644 index 000000000000..0fbbda7e665e --- /dev/null +++ b/tools/testing/selftests/sgx/test_encl.lds @@ -0,0 +1,40 @@ +OUTPUT_FORMAT(elf64-x86-64) + +PHDRS +{ + tcs PT_LOAD; + text PT_LOAD; + data PT_LOAD; +} + +SECTIONS +{ + . = 0; + .tcs : { + *(.tcs*) + } : tcs + + . = ALIGN(4096); + .text : { + *(.text*) + *(.rodata*) + } : text + + . = ALIGN(4096); + .data : { + *(.data*) + } : data + + /DISCARD/ : { + *(.comment*) + *(.note*) + *(.debug*) + *(.eh_frame*) + } +} + +ASSERT(!DEFINED(.altinstructions), "ALTERNATIVES are not supported in enclaves") +ASSERT(!DEFINED(.altinstr_replacement), "ALTERNATIVES are not supported in enclaves") +ASSERT(!DEFINED(.discard.retpoline_safe), "RETPOLINE ALTERNATIVES are not supported in enclaves") +ASSERT(!DEFINED(.discard.nospec), "RETPOLINE ALTERNATIVES are not supported in enclaves") +ASSERT(!DEFINED(.got.plt), "Libcalls are not supported in enclaves") diff --git a/tools/testing/selftests/sgx/test_encl_bootstrap.S b/tools/testing/selftests/sgx/test_encl_bootstrap.S new file mode 100644 index 000000000000..6836ea86126e --- /dev/null +++ b/tools/testing/selftests/sgx/test_encl_bootstrap.S @@ -0,0 +1,89 @@ +/* SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause) */ +/* + * Copyright(c) 2016-18 Intel Corporation. + */ + + .macro ENCLU + .byte 0x0f, 0x01, 0xd7 + .endm + + .section ".tcs", "aw" + .balign 4096 + + .fill 1, 8, 0 # STATE (set by CPU) + .fill 1, 8, 0 # FLAGS + .quad encl_ssa # OSSA + .fill 1, 4, 0 # CSSA (set by CPU) + .fill 1, 4, 1 # NSSA + .quad encl_entry # OENTRY + .fill 1, 8, 0 # AEP (set by EENTER and ERESUME) + .fill 1, 8, 0 # OFSBASE + .fill 1, 8, 0 # OGSBASE + .fill 1, 4, 0xFFFFFFFF # FSLIMIT + .fill 1, 4, 0xFFFFFFFF # GSLIMIT + .fill 4024, 1, 0 # Reserved + + # Identical to the previous TCS. + .fill 1, 8, 0 # STATE (set by CPU) + .fill 1, 8, 0 # FLAGS + .quad encl_ssa # OSSA + .fill 1, 4, 0 # CSSA (set by CPU) + .fill 1, 4, 1 # NSSA + .quad encl_entry # OENTRY + .fill 1, 8, 0 # AEP (set by EENTER and ERESUME) + .fill 1, 8, 0 # OFSBASE + .fill 1, 8, 0 # OGSBASE + .fill 1, 4, 0xFFFFFFFF # FSLIMIT + .fill 1, 4, 0xFFFFFFFF # GSLIMIT + .fill 4024, 1, 0 # Reserved + + .text + +encl_entry: + # RBX contains the base address for TCS, which is also the first address + # inside the enclave. By adding the value of le_stack_end to it, we get + # the absolute address for the stack. + lea (encl_stack)(%rbx), %rax + xchg %rsp, %rax + push %rax + + push %rcx # push the address after EENTER + push %rbx # push the enclave base address + + call encl_body + + pop %rbx # pop the enclave base address + + /* Clear volatile GPRs, except RAX (EEXIT leaf). */ + xor %rcx, %rcx + xor %rdx, %rdx + xor %rdi, %rdi + xor %rsi, %rsi + xor %r8, %r8 + xor %r9, %r9 + xor %r10, %r10 + xor %r11, %r11 + + # Reset status flags. + add %rdx, %rdx # OF = SF = AF = CF = 0; ZF = PF = 1 + + # Prepare EEXIT target by popping the address of the instruction after + # EENTER to RBX. + pop %rbx + + # Restore the caller stack. + pop %rax + mov %rax, %rsp + + # EEXIT + mov $4, %rax + enclu + + .section ".data", "aw" + +encl_ssa: + .space 4096 + + .balign 4096 + .space 8192 +encl_stack: -- 2.25.1

5 years, 1 month

1
1
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[PATCH] lib: kunit: add bitfield test conversion to KUnit

by Vitor Massaru Iha

This adds the conversion of the runtime tests of test_bitfield, from `lib/test_bitfield.c` to KUnit tests. Please apply this commit first (linux-kselftest/kunit-fixes): 3f37d14b8a3152441f36b6bc74000996679f0998 kunit: kunit_config: Fix parsing of CONFIG options with space Code Style Documentation: [0] Signed-off-by: Vitor Massaru Iha <vitor(a)massaru.org> Link: [0] https://lore.kernel.org/linux-kselftest/20200620054944.167330-1-davidgow@go… --- lib/Kconfig.debug | 23 ++++-- lib/Makefile | 2 +- lib/{test_bitfield.c => bitfield_kunit.c} | 92 ++++++++++------------- 3 files changed, 57 insertions(+), 60 deletions(-) rename lib/{test_bitfield.c => bitfield_kunit.c} (66%) diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index 9ad9210d70a1..16c5574bf103 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -1986,13 +1986,6 @@ config TEST_BITMAP If unsure, say N. -config TEST_BITFIELD - tristate "Test bitfield functions at runtime" - help - Enable this option to test the bitfield functions at boot. - - If unsure, say N. - config TEST_UUID tristate "Test functions located in the uuid module at runtime" @@ -2142,6 +2135,22 @@ config TEST_SYSCTL If unsure, say N. +config BITFIELD_KUNIT + tristate "KUnit test bitfield functions at runtime" + depends on KUNIT + help + Enable this option to test the bitfield functions at boot. + + KUnit tests run during boot and output the results to the debug log + in TAP format (http://testanything.org/). Only useful for kernel devs + running the KUnit test harness, and not intended for inclusion into a + production build. + + For more information on KUnit and unit tests in general please refer + to the KUnit documentation in Documentation/dev-tools/kunit/. + + If unsure, say N. + config SYSCTL_KUNIT_TEST tristate "KUnit test for sysctl" if !KUNIT_ALL_TESTS depends on KUNIT diff --git a/lib/Makefile b/lib/Makefile index b1c42c10073b..56019c34f5ed 100644 --- a/lib/Makefile +++ b/lib/Makefile @@ -84,7 +84,6 @@ obj-$(CONFIG_TEST_STATIC_KEYS) += test_static_key_base.o obj-$(CONFIG_TEST_PRINTF) += test_printf.o obj-$(CONFIG_TEST_BITMAP) += test_bitmap.o obj-$(CONFIG_TEST_STRSCPY) += test_strscpy.o -obj-$(CONFIG_TEST_BITFIELD) += test_bitfield.o obj-$(CONFIG_TEST_UUID) += test_uuid.o obj-$(CONFIG_TEST_XARRAY) += test_xarray.o obj-$(CONFIG_TEST_PARMAN) += test_parman.o @@ -316,5 +315,6 @@ obj-$(CONFIG_GENERIC_LIB_UCMPDI2) += ucmpdi2.o obj-$(CONFIG_OBJAGG) += objagg.o # KUnit tests +obj-$(CONFIG_BITFIELD_KUNIT) += bitfield_kunit.o obj-$(CONFIG_LIST_KUNIT_TEST) += list-test.o obj-$(CONFIG_LINEAR_RANGES_TEST) += test_linear_ranges.o diff --git a/lib/test_bitfield.c b/lib/bitfield_kunit.c similarity index 66% rename from lib/test_bitfield.c rename to lib/bitfield_kunit.c index 5b8f4108662d..d63a2be5aff8 100644 --- a/lib/test_bitfield.c +++ b/lib/bitfield_kunit.c @@ -5,8 +5,7 @@ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt -#include <linux/kernel.h> -#include <linux/module.h> +#include <kunit/test.h> #include <linux/bitfield.h> #define CHECK_ENC_GET_U(tp, v, field, res) do { \ @@ -14,13 +13,11 @@ u##tp _res; \ \ _res = u##tp##_encode_bits(v, field); \ - if (_res != res) { \ - pr_warn("u" #tp "_encode_bits(" #v ", " #field ") is 0x%llx != " #res "\n",\ - (u64)_res); \ - return -EINVAL; \ - } \ - if (u##tp##_get_bits(_res, field) != v) \ - return -EINVAL; \ + KUNIT_ASSERT_FALSE_MSG(context, _res != res, \ + "u" #tp "_encode_bits(" #v ", " #field ") is 0x%llx != " #res "\n", \ + (u64)_res); \ + KUNIT_ASSERT_FALSE(context, \ + u##tp##_get_bits(_res, field) != v); \ } \ } while (0) @@ -29,14 +26,13 @@ __le##tp _res; \ \ _res = le##tp##_encode_bits(v, field); \ - if (_res != cpu_to_le##tp(res)) { \ - pr_warn("le" #tp "_encode_bits(" #v ", " #field ") is 0x%llx != 0x%llx\n",\ - (u64)le##tp##_to_cpu(_res), \ - (u64)(res)); \ - return -EINVAL; \ - } \ - if (le##tp##_get_bits(_res, field) != v) \ - return -EINVAL; \ + KUNIT_ASSERT_FALSE_MSG(context, \ + _res != cpu_to_le##tp(res), \ + "le" #tp "_encode_bits(" #v ", " #field ") is 0x%llx != 0x%llx",\ + (u64)le##tp##_to_cpu(_res), \ + (u64)(res)); \ + KUNIT_ASSERT_FALSE(context, \ + le##tp##_get_bits(_res, field) != v);\ } \ } while (0) @@ -45,14 +41,13 @@ __be##tp _res; \ \ _res = be##tp##_encode_bits(v, field); \ - if (_res != cpu_to_be##tp(res)) { \ - pr_warn("be" #tp "_encode_bits(" #v ", " #field ") is 0x%llx != 0x%llx\n",\ - (u64)be##tp##_to_cpu(_res), \ - (u64)(res)); \ - return -EINVAL; \ - } \ - if (be##tp##_get_bits(_res, field) != v) \ - return -EINVAL; \ + KUNIT_ASSERT_FALSE_MSG(context, \ + _res != cpu_to_be##tp(res), \ + "be" #tp "_encode_bits(" #v ", " #field ") is 0x%llx != 0x%llx", \ + (u64)be##tp##_to_cpu(_res), \ + (u64)(res)); \ + KUNIT_ASSERT_FALSE(context, \ + be##tp##_get_bits(_res, field) != v);\ } \ } while (0) @@ -62,7 +57,7 @@ CHECK_ENC_GET_BE(tp, v, field, res); \ } while (0) -static int test_constants(void) +static void __init test_bitfields_constants(struct kunit *context) { /* * NOTE @@ -95,19 +90,17 @@ static int test_constants(void) CHECK_ENC_GET(64, 7, 0x00f0000000000000ull, 0x0070000000000000ull); CHECK_ENC_GET(64, 14, 0x0f00000000000000ull, 0x0e00000000000000ull); CHECK_ENC_GET(64, 15, 0xf000000000000000ull, 0xf000000000000000ull); - - return 0; } #define CHECK(tp, mask) do { \ u64 v; \ \ for (v = 0; v < 1 << hweight32(mask); v++) \ - if (tp##_encode_bits(v, mask) != v << __ffs64(mask)) \ - return -EINVAL; \ + KUNIT_ASSERT_FALSE(context, \ + tp##_encode_bits(v, mask) != v << __ffs64(mask));\ } while (0) -static int test_variables(void) +static void __init test_bitfields_variables(struct kunit *context) { CHECK(u8, 0x0f); CHECK(u8, 0xf0); @@ -130,39 +123,34 @@ static int test_variables(void) CHECK(u64, 0x000000007f000000ull); CHECK(u64, 0x0000000018000000ull); CHECK(u64, 0x0000001f8000000ull); - - return 0; } -static int __init test_bitfields(void) -{ - int ret = test_constants(); - - if (ret) { - pr_warn("constant tests failed!\n"); - return ret; - } - - ret = test_variables(); - if (ret) { - pr_warn("variable tests failed!\n"); - return ret; - } -#ifdef TEST_BITFIELD_COMPILE +static void __init test_bitfields_compile(struct kunit *context) +{ /* these should fail compilation */ CHECK_ENC_GET(16, 16, 0x0f00, 0x1000); u32_encode_bits(7, 0x06000000); /* this should at least give a warning */ u16_encode_bits(0, 0x60000); +} + +static struct kunit_case __refdata bitfields_test_cases[] = { + KUNIT_CASE(test_bitfields_constants), + KUNIT_CASE(test_bitfields_variables), +#ifdef TEST_BITFIELD_COMPILE + KUNIT_CASE(test_bitfields_compile), #endif + {} +}; - pr_info("tests passed\n"); +static struct kunit_suite bitfields_test_suite = { + .name = "bitfields", + .test_cases = bitfields_test_cases, +}; - return 0; -} -module_init(test_bitfields) +kunit_test_suites(&bitfields_test_suite); MODULE_AUTHOR("Johannes Berg <johannes(a)sipsolutions.net>"); MODULE_LICENSE("GPL"); base-commit: d43c7fb05765152d4d4a39a8ef957c4ea14d8847 -- 2.26.2

5 years, 1 month

3
3
0 0

[tip: core/rcu] rcutorture: Cleanup PREEMPT_COUNT leftovers

by tip-bot2 for Thomas Gleixner

The following commit has been merged into the core/rcu branch of tip: Commit-ID: 27405ee98aee7a25bbca59b0aba04f33b6acc561 Gitweb: https://git.kernel.org/tip/27405ee98aee7a25bbca59b0aba04f33b6acc561 Author: Thomas Gleixner <tglx(a)linutronix.de> AuthorDate: Mon, 14 Sep 2020 19:37:36 +02:00 Committer: Paul E. McKenney <paulmck(a)kernel.org> CommitterDate: Thu, 01 Oct 2020 09:05:16 -07:00 rcutorture: Cleanup PREEMPT_COUNT leftovers CONFIG_PREEMPT_COUNT is now unconditionally enabled and will be removed. Cleanup the leftovers before doing so. Signed-off-by: Thomas Gleixner <tglx(a)linutronix.de> Cc: "Paul E. McKenney" <paulmck(a)kernel.org> Cc: Josh Triplett <josh(a)joshtriplett.org> Cc: Steven Rostedt <rostedt(a)goodmis.org> Cc: Mathieu Desnoyers <mathieu.desnoyers(a)efficios.com> Cc: Lai Jiangshan <jiangshanlai(a)gmail.com> Cc: Shuah Khan <shuah(a)kernel.org> Cc: rcu(a)vger.kernel.org Cc: linux-kselftest(a)vger.kernel.org Signed-off-by: Paul E. McKenney <paulmck(a)kernel.org> --- tools/testing/selftests/rcutorture/configs/rcu/SRCU-t | 1 - tools/testing/selftests/rcutorture/configs/rcu/SRCU-u | 1 - tools/testing/selftests/rcutorture/configs/rcu/TINY01 | 1 - tools/testing/selftests/rcutorture/doc/TINY_RCU.txt | 5 ++--- tools/testing/selftests/rcutorture/doc/TREE_RCU-kconfig.txt | 1 - tools/testing/selftests/rcutorture/formal/srcu-cbmc/src/config.h | 1 - 6 files changed, 2 insertions(+), 8 deletions(-) diff --git a/tools/testing/selftests/rcutorture/configs/rcu/SRCU-t b/tools/testing/selftests/rcutorture/configs/rcu/SRCU-t index 6c78022..553cf65 100644 --- a/tools/testing/selftests/rcutorture/configs/rcu/SRCU-t +++ b/tools/testing/selftests/rcutorture/configs/rcu/SRCU-t @@ -7,4 +7,3 @@ CONFIG_RCU_TRACE=n CONFIG_DEBUG_LOCK_ALLOC=n CONFIG_DEBUG_OBJECTS_RCU_HEAD=n CONFIG_DEBUG_ATOMIC_SLEEP=y -#CHECK#CONFIG_PREEMPT_COUNT=y diff --git a/tools/testing/selftests/rcutorture/configs/rcu/SRCU-u b/tools/testing/selftests/rcutorture/configs/rcu/SRCU-u index c15ada8..99563da 100644 --- a/tools/testing/selftests/rcutorture/configs/rcu/SRCU-u +++ b/tools/testing/selftests/rcutorture/configs/rcu/SRCU-u @@ -7,4 +7,3 @@ CONFIG_RCU_TRACE=n CONFIG_DEBUG_LOCK_ALLOC=y CONFIG_PROVE_LOCKING=y CONFIG_DEBUG_OBJECTS_RCU_HEAD=n -CONFIG_PREEMPT_COUNT=n diff --git a/tools/testing/selftests/rcutorture/configs/rcu/TINY01 b/tools/testing/selftests/rcutorture/configs/rcu/TINY01 index 6db705e..9b22b8e 100644 --- a/tools/testing/selftests/rcutorture/configs/rcu/TINY01 +++ b/tools/testing/selftests/rcutorture/configs/rcu/TINY01 @@ -10,4 +10,3 @@ CONFIG_RCU_TRACE=n #CHECK#CONFIG_RCU_STALL_COMMON=n CONFIG_DEBUG_LOCK_ALLOC=n CONFIG_DEBUG_OBJECTS_RCU_HEAD=n -CONFIG_PREEMPT_COUNT=n diff --git a/tools/testing/selftests/rcutorture/doc/TINY_RCU.txt b/tools/testing/selftests/rcutorture/doc/TINY_RCU.txt index a75b169..d30cedf 100644 --- a/tools/testing/selftests/rcutorture/doc/TINY_RCU.txt +++ b/tools/testing/selftests/rcutorture/doc/TINY_RCU.txt @@ -3,11 +3,10 @@ This document gives a brief rationale for the TINY_RCU test cases. Kconfig Parameters: -CONFIG_DEBUG_LOCK_ALLOC -- Do all three and none of the three. -CONFIG_PREEMPT_COUNT +CONFIG_DEBUG_LOCK_ALLOC -- Do both and none of the two. CONFIG_RCU_TRACE -The theory here is that randconfig testing will hit the other six possible +The theory here is that randconfig testing will hit the other two possible combinations of these parameters. diff --git a/tools/testing/selftests/rcutorture/doc/TREE_RCU-kconfig.txt b/tools/testing/selftests/rcutorture/doc/TREE_RCU-kconfig.txt index 1b96d68..cfdd48f 100644 --- a/tools/testing/selftests/rcutorture/doc/TREE_RCU-kconfig.txt +++ b/tools/testing/selftests/rcutorture/doc/TREE_RCU-kconfig.txt @@ -43,7 +43,6 @@ CONFIG_64BIT Used only to check CONFIG_RCU_FANOUT value, inspection suffices. -CONFIG_PREEMPT_COUNT CONFIG_PREEMPT_RCU Redundant with CONFIG_PREEMPT, ignore. diff --git a/tools/testing/selftests/rcutorture/formal/srcu-cbmc/src/config.h b/tools/testing/selftests/rcutorture/formal/srcu-cbmc/src/config.h index 283d710..d0d485d 100644 --- a/tools/testing/selftests/rcutorture/formal/srcu-cbmc/src/config.h +++ b/tools/testing/selftests/rcutorture/formal/srcu-cbmc/src/config.h @@ -8,7 +8,6 @@ #undef CONFIG_HOTPLUG_CPU #undef CONFIG_MODULES #undef CONFIG_NO_HZ_FULL_SYSIDLE -#undef CONFIG_PREEMPT_COUNT #undef CONFIG_PREEMPT_RCU #undef CONFIG_PROVE_RCU #undef CONFIG_RCU_NOCB_CPU

5 years, 1 month

1
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selftests: pidfd: pidfd_wait hangs on linux next kernel on all devices

by Naresh Kamboju

selftests: pidfd: pidfd_wait hangs on linux next kernel on x86_64, i386 and arm64 Juno-r2 These devices are using NFS mounted rootfs. I have tested pidfd testcases independently and all test PASS. The Hang or exit from test run noticed when run by run_kselftest.sh pidfd_wait.c:208:wait_nonblock:Expected sys_waitid(P_PIDFD, pidfd, &info, WSTOPPED, NULL) (-1) == 0 (0) wait_nonblock: Test terminated by assertion metadata: git branch: master git repo: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git git commit: e64997027d5f171148687e58b78c8b3c869a6158 git describe: next-20200922 make_kernelversion: 5.9.0-rc6 kernel-config: http://snapshots.linaro.org/openembedded/lkft/lkft/sumo/intel-core2-32/lkft… Reported-by: Naresh Kamboju <naresh.kamboju(a)linaro.org> Test output log: --------------------- [ 1385.104983] audit: type=1701 audit(1600804535.960:87865): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=kernel pid=31268 comm=\"pidfd_wait\" exe=\"/opt/kselftests/default-in-kernel/pidfd/pidfd_wait\" sig=6 res=1 # selftests: pidfd: pidfd_wait # TAP version 13 # 1..3 # # Starting 3 tests from 1 test cases. # # RUN global.wait_simple ... # # OK global.wait_simple # ok 1 global.wait_simple # # RUN global.wait_states ... # # OK global.wait_states # ok 2 global.wait_states # # RUN global.wait_nonblock ... # # pidfd_wait.c:208:wait_nonblock:Expected sys_waitid(P_PIDFD, pidfd, &info, WSTOPPED, NULL) (-1) == 0 (0) # # wait_nonblock: Test terminated by assertion # # FAIL global.wait_nonblock # not ok 3 global.wait_nonblock # # FAILED: 2 / 3 tests passed. # # Totals: pass:2 fail:1 xfail:0 xpass:0 skip:0 error:0 Marking unfinished test run as failed ref: https://lkft.validation.linaro.org/scheduler/job/1782129#L11737 https://lkft.validation.linaro.org/scheduler/job/1782130#L12735 https://lkft.validation.linaro.org/scheduler/job/1782138#L14178 -- Linaro LKFT https://lkft.linaro.org

5 years, 1 month

2
5
0 0

[PATCH net-next] selftests: mptcp: interpret \n as a new line

by Matthieu Baerts

In case of errors, this message was printed: (...) balanced bwidth with unbalanced delay 5233 max 5005 [ fail ] client exit code 0, server 0 \nnetns ns3-0-EwnkPH socket stat for 10003: (...) Obviously, the idea was to add a new line before the socket stat and not print "\nnetns". The commit 8b974778f998 ("selftests: mptcp: interpret \n as a new line") is very similar to this one. But the modification in simult_flows.sh was missed because this commit above was done in parallel to one here below. Fixes: 1a418cb8e888 ("mptcp: simult flow self-tests") Signed-off-by: Matthieu Baerts <matthieu.baerts(a)tessares.net> --- tools/testing/selftests/net/mptcp/simult_flows.sh | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/tools/testing/selftests/net/mptcp/simult_flows.sh b/tools/testing/selftests/net/mptcp/simult_flows.sh index 0d88225daa02..2f649b431456 100755 --- a/tools/testing/selftests/net/mptcp/simult_flows.sh +++ b/tools/testing/selftests/net/mptcp/simult_flows.sh @@ -200,9 +200,9 @@ do_transfer() echo " [ fail ]" echo "client exit code $retc, server $rets" 1>&2 - echo "\nnetns ${ns3} socket stat for $port:" 1>&2 + echo -e "\nnetns ${ns3} socket stat for $port:" 1>&2 ip netns exec ${ns3} ss -nita 1>&2 -o "sport = :$port" - echo "\nnetns ${ns1} socket stat for $port:" 1>&2 + echo -e "\nnetns ${ns1} socket stat for $port:" 1>&2 ip netns exec ${ns1} ss -nita 1>&2 -o "dport = :$port" ls -l $sin $cout ls -l $cin $sout -- 2.27.0

5 years, 1 month

3
2
0 0

[PATCH v2] selftests/tls: Add {} to avoid static checker warning

by Kees Cook

This silences a static checker warning due to the unusual macro construction of EXPECT_*() by adding explicit {}s around the enclosing while loop. Reported-by: Dan Carpenter <dan.carpenter(a)oracle.com> Fixes: 7f657d5bf507 ("selftests: tls: add selftests for TLS sockets") Signed-off-by: Kees Cook <keescook(a)chromium.org> --- v2: rebase to v5.9-rc2; oops, I lost this patch and just found it again v1: https://lore.kernel.org/lkml/20190108214159.GA33292@beast/ --- tools/testing/selftests/net/tls.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/tools/testing/selftests/net/tls.c b/tools/testing/selftests/net/tls.c index b599f1fa99b5..44984741bd41 100644 --- a/tools/testing/selftests/net/tls.c +++ b/tools/testing/selftests/net/tls.c @@ -387,8 +387,9 @@ TEST_F(tls, sendmsg_large) EXPECT_EQ(sendmsg(self->cfd, &msg, 0), send_len); } - while (recvs++ < sends) + while (recvs++ < sends) { EXPECT_NE(recv(self->fd, mem, send_len, 0), -1); + } free(mem); } -- 2.25.1

5 years, 1 month

1
0
0 0

[PATCH v2 00/11] Introduce Simple atomic counters

by Shuah Khan

This patch series is a result of discussion at the refcount_t BOF the Linux Plumbers Conference. In this discussion, we identified a need for looking closely and investigating atomic_t usages in the kernel when it is used strictly as a counter without it controlling object lifetimes and state changes. There are a number of atomic_t usages in the kernel where atomic_t api is used strictly for counting and not for managing object lifetime. In some cases, atomic_t might not even be needed. The purpose of these counters is to clearly differentiate atomic_t counters from atomic_t usages that guard object lifetimes, hence prone to overflow and underflow errors. It allows tools that scan for underflow and overflow on atomic_t usages to detect overflow and underflows to scan just the cases that are prone to errors. Simple atomic counters api provides interfaces for simple atomic counters that just count, and don't guard resource lifetimes. Counter will wrap around to 0 when it overflows and should not be used to guard resource lifetimes, device usage and open counts that control state changes, and pm states. Using counter_atomic* to guard lifetimes could lead to use-after free when it overflows and undefined behavior when used to manage state changes and device usage/open states. This patch series introduces Simple atomic counters. Counter atomic ops leverage atomic_t and provide a sub-set of atomic_t ops. In addition this patch series converts a few drivers to use the new api. The following criteria is used for select variables for conversion: 1. Variable doesn't guard object lifetimes, manage state changes e.g: device usage counts, device open counts, and pm states. 2. Variable is used for stats and counters. 3. The conversion doesn't change the overflow behavior. Changes since Patch v1 -- Thanks for reviews and reviewed-by, and Acked-by tags. Updated the patches with the tags. -- Addressed Kees's and Joel's comments: 1. Removed dec_return interfaces (Patch 1/11) 2. Removed counter_simple interfaces to be added later with changes to drivers that use them (if any) (Patch 1/11) 3. Comment and Changelogs updates to Patch 2/11 Kees, if this series is good, would you like to take this through your tree or would you like to take this through mine? Changes since RFC: -- Thanks for reviews and reviewed-by, and Acked-by tags. Updated the patches with the tags. -- Addressed Kees's comments: 1. Non-atomic counters renamed to counter_simple32 and counter_simple64 to clearly indicate size. 2. Added warning for counter_simple* usage and it should be used only when there is no need for atomicity. 3. Renamed counter_atomic to counter_atomic32 to clearly indicate size. 4. Renamed counter_atomic_long to counter_atomic64 and it now uses atomic64_t ops and indicates size. 5. Test updated for the API renames. 6. Added helper functions for test results printing 7. Verified that the test module compiles in kunit env. and test module can be loaded to run the test. 8. Updated Documentation to reflect the intent to make the API restricted so it can never be used to guard object lifetimes and state management. I left _return ops for now, inc_return is necessary for now as per the discussion we had on this topic. -- Updated driver patches with API name changes. -- We discussed if binder counters can be non-atomic. For now I left them the same as the RFC patch - using counter_atomic32 -- Unrelated to this patch series: The patch series review uncovered improvements could be made to test_async_driver_probe and vmw_vmci/vmci_guest. I will track these for fixing later. Shuah Khan (11): counters: Introduce counter_atomic* counters selftests:lib:test_counters: add new test for counters drivers/base: convert deferred_trigger_count and probe_count to counter_atomic32 drivers/base/devcoredump: convert devcd_count to counter_atomic32 drivers/acpi: convert seqno counter_atomic32 drivers/acpi/apei: convert seqno counter_atomic32 drivers/android/binder: convert stats, transaction_log to counter_atomic32 drivers/base/test/test_async_driver_probe: convert to use counter_atomic32 drivers/char/ipmi: convert stats to use counter_atomic32 drivers/misc/vmw_vmci: convert num guest devices counter to counter_atomic32 drivers/edac: convert pci counters to counter_atomic32 Documentation/core-api/counters.rst | 103 +++++++++++ MAINTAINERS | 8 + drivers/acpi/acpi_extlog.c | 5 +- drivers/acpi/apei/ghes.c | 5 +- drivers/android/binder.c | 41 ++--- drivers/android/binder_internal.h | 3 +- drivers/base/dd.c | 19 +- drivers/base/devcoredump.c | 5 +- drivers/base/test/test_async_driver_probe.c | 23 +-- drivers/char/ipmi/ipmi_msghandler.c | 9 +- drivers/char/ipmi/ipmi_si_intf.c | 9 +- drivers/edac/edac_pci.h | 5 +- drivers/edac/edac_pci_sysfs.c | 28 +-- drivers/misc/vmw_vmci/vmci_guest.c | 9 +- include/linux/counters.h | 173 +++++++++++++++++++ lib/Kconfig | 10 ++ lib/Makefile | 1 + lib/test_counters.c | 157 +++++++++++++++++ tools/testing/selftests/lib/Makefile | 1 + tools/testing/selftests/lib/config | 1 + tools/testing/selftests/lib/test_counters.sh | 5 + 21 files changed, 546 insertions(+), 74 deletions(-) create mode 100644 Documentation/core-api/counters.rst create mode 100644 include/linux/counters.h create mode 100644 lib/test_counters.c create mode 100755 tools/testing/selftests/lib/test_counters.sh -- 2.25.1

5 years, 1 month

2
3
0 0

[REGRESSION] kselftest: next-20201006

by LKFT

## Kernel * kernel: 5.9.0-rc8 * git repo: ['https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git', 'https://gitlab.com/Linaro/lkft/mirrors/next/linux-next'] * git branch: master * git commit: a804ab086e9de200e2e70600996db7fc14c91959 * git describe: next-20201006 * Test details: https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20201006 ## Regressions (compared to build next-20201002) x86: kselftest-vsyscall-mode-none: * rtc.rtctest kselftest: * net.mptcp.mptcp_connect.sh * rtc.rtctest i386: kselftest: * rtc.rtctest ## Fixes (compared to build next-20201002) x86: kselftest-vsyscall-mode-native: * net.mptcp.mptcp_connect.sh * rtc.rtctest kselftest-vsyscall-mode-none: * proc.read * tc-testing.tdc.sh i386: kselftest: * pidfd.pidfd_test ## Summary ### i386, kselftest * total: 676 * pass: 410 * fail: 215 * skip: 51 * xfail: 0 ### juno-r2, kselftest * total: 653 * pass: 404 * fail: 199 * skip: 50 * xfail: 0 ### x86, kselftest * total: 670 * pass: 436 * fail: 189 * skip: 45 * xfail: 0 ### x86, kselftest-vsyscall-mode-native * total: 671 * pass: 439 * fail: 187 * skip: 45 * xfail: 0 ### x86, kselftest-vsyscall-mode-none * total: 670 * pass: 437 * fail: 188 * skip: 45 * xfail: 0 ## Environments * dragonboard-410c * hi6220-hikey * i386 * juno-r2 * juno-r2-compat * juno-r2-kasan * nxp-ls2088 * qemu_arm * qemu_arm64 * qemu_i386 * qemu_x86_64 * x15 * x86 * x86-kasan ## Suites * kselftest * kselftest-vsyscall-mode-native * kselftest-vsyscall-mode-none ## Failures ### i386, kselftest * bpf.test_verifier * bpf.test_maps * bpf.test_progs * bpf.test_dev_cgroup * bpf.test_tcpbpf_user * bpf.get_cgroup_id_user * bpf.test_socket_cookie * bpf.test_netcnt * bpf.test_tcpnotify_user * bpf.test_sysctl * bpf.test_progs-no_alu32 * bpf.test_xdp_redirect.sh * bpf.test_xdp_meta.sh * bpf.test_sock_addr.sh * bpf.test_tunnel.sh * bpf.test_lwt_seg6local.sh * bpf.test_skb_cgroup_id.sh * bpf.test_flow_dissector.sh * bpf.test_xdp_vlan_mode_generic.sh * bpf.test_xdp_vlan_mode_native.sh * bpf.test_lwt_ip_encap.sh * bpf.test_tcp_check_syncookie.sh * bpf.test_tc_tunnel.sh * bpf.test_tc_edt.sh * bpf.test_xdping.sh * bpf.test_bpftool.sh * cgroup.test_memcontrol * cgroup.test_kmem * cgroup.test_core * cgroup.test_freezer * clone3.clone3_clear_sighand * clone3.clone3_cap_checkpoint_restore * core.close_range_test * filesystems.binderfs.binderfs_test * firmware.fw_run_tests.sh * ftrace.ftracetest * intel_pstate.run.sh * kvm.cr4_cpuid_sync_test * kvm.evmcs_test * kvm.hyperv_cpuid * kvm.mmio_warning_test * kvm.platform_info_test * kvm.set_sregs_test * kvm.smm_test * kvm.state_test * kvm.vmx_preemption_timer_test * kvm.svm_vmcall_test * kvm.sync_regs_test * kvm.vmx_close_while_nested_test * kvm.vmx_dirty_log_test * kvm.vmx_set_nested_state_test * kvm.vmx_tsc_adjust_test * kvm.xss_msr_test * kvm.debug_regs * kvm.clear_dirty_log_test * kvm.demand_paging_test * kvm.dirty_log_test * kvm.kvm_create_max_vcpus * kvm.set_memory_region_test * kvm.steal_time * lkdtm.BUG.sh * lkdtm.WARNING.sh * lkdtm.WARNING_MESSAGE.sh * lkdtm.EXCEPTION.sh * lkdtm.CORRUPT_LIST_ADD.sh * lkdtm.CORRUPT_LIST_DEL.sh * lkdtm.STACK_GUARD_PAGE_LEADING.sh * lkdtm.STACK_GUARD_PAGE_TRAILING.sh * lkdtm.UNSET_SMEP.sh * lkdtm.DOUBLE_FAULT.sh * lkdtm.CORRUPT_PAC.sh * lkdtm.UNALIGNED_LOAD_STORE_WRITE.sh * lkdtm.READ_AFTER_FREE.sh * lkdtm.READ_BUDDY_AFTER_FREE.sh * lkdtm.SLAB_FREE_DOUBLE.sh * lkdtm.SLAB_FREE_CROSS.sh * lkdtm.SLAB_FREE_PAGE.sh * lkdtm.EXEC_DATA.sh * lkdtm.EXEC_STACK.sh * lkdtm.EXEC_KMALLOC.sh * lkdtm.EXEC_VMALLOC.sh * lkdtm.EXEC_RODATA.sh * lkdtm.EXEC_USERSPACE.sh * lkdtm.EXEC_NULL.sh * lkdtm.ACCESS_USERSPACE.sh * lkdtm.ACCESS_NULL.sh * lkdtm.WRITE_RO.sh * lkdtm.WRITE_RO_AFTER_INIT.sh * lkdtm.WRITE_KERN.sh * lkdtm.REFCOUNT_INC_OVERFLOW.sh * lkdtm.REFCOUNT_ADD_OVERFLOW.sh * lkdtm.REFCOUNT_INC_NOT_ZERO_OVERFLOW.sh * lkdtm.REFCOUNT_ADD_NOT_ZERO_OVERFLOW.sh * lkdtm.REFCOUNT_DEC_ZERO.sh * lkdtm.REFCOUNT_DEC_NEGATIVE.sh * lkdtm.REFCOUNT_DEC_AND_TEST_NEGATIVE.sh * lkdtm.REFCOUNT_SUB_AND_TEST_NEGATIVE.sh * lkdtm.REFCOUNT_INC_ZERO.sh * lkdtm.REFCOUNT_ADD_ZERO.sh * lkdtm.REFCOUNT_INC_SATURATED.sh * lkdtm.REFCOUNT_DEC_SATURATED.sh * lkdtm.REFCOUNT_ADD_SATURATED.sh * lkdtm.REFCOUNT_INC_NOT_ZERO_SATURATED.sh * lkdtm.REFCOUNT_ADD_NOT_ZERO_SATURATED.sh * lkdtm.REFCOUNT_DEC_AND_TEST_SATURATED.sh * lkdtm.REFCOUNT_SUB_AND_TEST_SATURATED.sh * lkdtm.USERCOPY_HEAP_SIZE_TO.sh * lkdtm.USERCOPY_HEAP_SIZE_FROM.sh * lkdtm.USERCOPY_HEAP_WHITELIST_TO.sh * lkdtm.USERCOPY_HEAP_WHITELIST_FROM.sh * lkdtm.USERCOPY_STACK_FRAME_TO.sh * lkdtm.USERCOPY_STACK_FRAME_FROM.sh * lkdtm.USERCOPY_STACK_BEYOND.sh * lkdtm.USERCOPY_KERNEL.sh * lkdtm.STACKLEAK_ERASING.sh * lkdtm.CFI_FORWARD_PROTO.sh * mincore.mincore_selftest.global.check_file_mmap * mincore.mincore_selftest * mqueue.mq_perf_tests * net.run_netsocktests * net.fib_tests.sh * net.fib-onlink-tests.sh * net.pmtu.sh * net.udpgso_bench.sh * net.psock_snd.sh * net.udpgro_bench.sh * net.test_vxlan_under_vrf.sh * net.l2tp.sh * net.traceroute.sh * net.altnames.sh * net.icmp_redirect.sh * net.txtimestamp.sh * net.vrf-xfrm-tests.sh * net.devlink_port_split.py * net.forwarding.bridge_igmp.sh * net.forwarding.bridge_port_isolation.sh * net.forwarding.bridge_sticky_fdb.sh * net.forwarding.bridge_vlan_aware.sh * net.forwarding.bridge_vlan_unaware.sh * net.forwarding.ethtool.sh * net.forwarding.gre_inner_v4_multipath.sh * net.forwarding.gre_inner_v6_multipath.sh * net.forwarding.gre_multipath.sh * net.forwarding.ip6gre_inner_v4_multipath.sh * net.forwarding.ip6gre_inner_v6_multipath.sh * net.forwarding.ipip_flat_gre_key.sh * net.forwarding.ipip_flat_gre_keys.sh * net.forwarding.ipip_flat_gre.sh * net.forwarding.ipip_hier_gre_key.sh * net.forwarding.ipip_hier_gre_keys.sh * net.forwarding.ipip_hier_gre.sh * net.forwarding.loopback.sh * net.forwarding.mirror_gre_bound.sh * net.forwarding.mirror_gre_bridge_1d.sh * net.forwarding.mirror_gre_bridge_1d_vlan.sh * net.forwarding.mirror_gre_bridge_1q_lag.sh * net.forwarding.mirror_gre_bridge_1q.sh * net.forwarding.mirror_gre_changes.sh * net.forwarding.mirror_gre_flower.sh * net.forwarding.mirror_gre_lag_lacp.sh * net.forwarding.mirror_gre_neigh.sh * net.forwarding.mirror_gre_nh.sh * net.forwarding.mirror_gre.sh * net.forwarding.mirror_gre_vlan_bridge_1q.sh * net.forwarding.mirror_gre_vlan.sh * net.forwarding.mirror_vlan.sh * net.forwarding.router_bridge.sh * net.forwarding.router_bridge_vlan.sh * net.forwarding.router_broadcast.sh * net.forwarding.router_mpath_nh.sh * net.forwarding.router_multicast.sh * net.forwarding.router_multipath.sh * net.forwarding.router.sh * net.forwarding.router_vid_1.sh * net.forwarding.sch_ets.sh * net.forwarding.sch_tbf_ets.sh * net.forwarding.sch_tbf_prio.sh * net.forwarding.sch_tbf_root.sh * net.forwarding.tc_actions.sh * net.forwarding.tc_chains.sh * net.forwarding.tc_flower_router.sh * net.forwarding.tc_flower.sh * net.forwarding.tc_shblocks.sh * net.forwarding.tc_vlan_modify.sh * net.forwarding.vxlan_asymmetric.sh * net.forwarding.vxlan_bridge_1d_port_8472.sh * net.forwarding.vxlan_bridge_1d.sh * net.forwarding.vxlan_bridge_1q_port_8472.sh * net.forwarding.vxlan_bridge_1q.sh * net.forwarding.vxlan_symmetric.sh * net.mptcp.simult_flows.sh * netfilter.nft_concat_range.sh * netfilter.nft_queue.sh * pidfd.pidfd_open_test * pidfd.pidfd_poll_test * proc.proc-self-syscall * proc.proc-fsconfig-hidepid * pstore.pstore_tests * ptrace.vmaccess.global.attach * ptrace.vmaccess * openat2.openat2_test * openat2.resolve_test * openat2.rename_attack_test * rseq.param_test * rseq.param_test_benchmark * rseq.param_test_compare_twice * rseq.run_param_test.sh * rtc.rtctest * seccomp.seccomp_bpf.global.user_notification_filter_empty * seccomp.seccomp_bpf.global.user_notification_filter_empty_threaded * seccomp.seccomp_bpf.global.user_notification_addfd * seccomp.seccomp_bpf * seccomp.seccomp_benchmark * splice.short_splice_read.sh * vm.run_vmtests.sh ### juno-r2, kselftest * bpf.test_verifier * bpf.test_tag * bpf.test_maps * bpf.test_lpm_map * bpf.test_progs * bpf.test_dev_cgroup * bpf.test_tcpbpf_user * bpf.get_cgroup_id_user * bpf.test_socket_cookie * bpf.test_netcnt * bpf.test_tcpnotify_user * bpf.test_sysctl * bpf.test_progs-no_alu32 * bpf.test_xdp_redirect.sh * bpf.test_xdp_meta.sh * bpf.test_sock_addr.sh * bpf.test_tunnel.sh * bpf.test_lwt_seg6local.sh * bpf.test_skb_cgroup_id.sh * bpf.test_flow_dissector.sh * bpf.test_xdp_vlan_mode_generic.sh * bpf.test_xdp_vlan_mode_native.sh * bpf.test_lwt_ip_encap.sh * bpf.test_tcp_check_syncookie.sh * bpf.test_tc_tunnel.sh * bpf.test_tc_edt.sh * bpf.test_xdping.sh * bpf.test_bpftool.sh * cgroup.test_memcontrol * cgroup.test_kmem * cgroup.test_core * cgroup.test_freezer * clone3.clone3_cap_checkpoint_restore * core.close_range_test * cpufreq.main.sh * filesystems.binderfs.binderfs_test * firmware.fw_run_tests.sh * ftrace.ftracetest * lkdtm.BUG.sh * lkdtm.WARNING.sh * lkdtm.WARNING_MESSAGE.sh * lkdtm.EXCEPTION.sh * lkdtm.CORRUPT_LIST_ADD.sh * lkdtm.CORRUPT_LIST_DEL.sh * lkdtm.STACK_GUARD_PAGE_LEADING.sh * lkdtm.STACK_GUARD_PAGE_TRAILING.sh * lkdtm.UNSET_SMEP.sh * lkdtm.CORRUPT_PAC.sh * lkdtm.UNALIGNED_LOAD_STORE_WRITE.sh * lkdtm.READ_AFTER_FREE.sh * lkdtm.READ_BUDDY_AFTER_FREE.sh * lkdtm.SLAB_FREE_DOUBLE.sh * lkdtm.SLAB_FREE_CROSS.sh * lkdtm.SLAB_FREE_PAGE.sh * lkdtm.EXEC_DATA.sh * lkdtm.EXEC_STACK.sh * lkdtm.EXEC_KMALLOC.sh * lkdtm.EXEC_VMALLOC.sh * lkdtm.EXEC_RODATA.sh * lkdtm.EXEC_USERSPACE.sh * lkdtm.EXEC_NULL.sh * lkdtm.ACCESS_USERSPACE.sh * lkdtm.ACCESS_NULL.sh * lkdtm.WRITE_RO.sh * lkdtm.WRITE_RO_AFTER_INIT.sh * lkdtm.WRITE_KERN.sh * lkdtm.REFCOUNT_INC_OVERFLOW.sh * lkdtm.REFCOUNT_ADD_OVERFLOW.sh * lkdtm.REFCOUNT_INC_NOT_ZERO_OVERFLOW.sh * lkdtm.REFCOUNT_ADD_NOT_ZERO_OVERFLOW.sh * lkdtm.REFCOUNT_DEC_ZERO.sh * lkdtm.REFCOUNT_DEC_NEGATIVE.sh * lkdtm.REFCOUNT_DEC_AND_TEST_NEGATIVE.sh * lkdtm.REFCOUNT_SUB_AND_TEST_NEGATIVE.sh * lkdtm.REFCOUNT_INC_ZERO.sh * lkdtm.REFCOUNT_ADD_ZERO.sh * lkdtm.REFCOUNT_INC_SATURATED.sh * lkdtm.REFCOUNT_DEC_SATURATED.sh * lkdtm.REFCOUNT_ADD_SATURATED.sh * lkdtm.REFCOUNT_INC_NOT_ZERO_SATURATED.sh * lkdtm.REFCOUNT_ADD_NOT_ZERO_SATURATED.sh * lkdtm.REFCOUNT_DEC_AND_TEST_SATURATED.sh * lkdtm.REFCOUNT_SUB_AND_TEST_SATURATED.sh * lkdtm.USERCOPY_HEAP_SIZE_TO.sh * lkdtm.USERCOPY_HEAP_SIZE_FROM.sh * lkdtm.USERCOPY_HEAP_WHITELIST_TO.sh * lkdtm.USERCOPY_HEAP_WHITELIST_FROM.sh * lkdtm.USERCOPY_STACK_FRAME_TO.sh * lkdtm.USERCOPY_STACK_FRAME_FROM.sh * lkdtm.USERCOPY_STACK_BEYOND.sh * lkdtm.USERCOPY_KERNEL.sh * lkdtm.STACKLEAK_ERASING.sh * lkdtm.CFI_FORWARD_PROTO.sh * memory-hotplug.mem-on-off-test.sh * mincore.mincore_selftest.global.check_file_mmap * mincore.mincore_selftest * net.run_netsocktests * net.fib_tests.sh * net.fib-onlink-tests.sh * net.pmtu.sh * net.udpgso_bench.sh * net.fib_rule_tests.sh * net.psock_snd.sh * net.udpgro_bench.sh * net.udpgro.sh * net.test_vxlan_under_vrf.sh * net.tcp_fastopen_backup_key.sh * net.l2tp.sh * net.fib_nexthops.sh * net.altnames.sh * net.icmp_redirect.sh * net.txtimestamp.sh * net.vrf-xfrm-tests.sh * net.devlink_port_split.py * net.forwarding.bridge_igmp.sh * net.forwarding.bridge_port_isolation.sh * net.forwarding.bridge_sticky_fdb.sh * net.forwarding.bridge_vlan_aware.sh * net.forwarding.bridge_vlan_unaware.sh * net.forwarding.ethtool.sh * net.forwarding.gre_inner_v4_multipath.sh * net.forwarding.gre_inner_v6_multipath.sh * net.forwarding.gre_multipath.sh * net.forwarding.ip6gre_inner_v4_multipath.sh * net.forwarding.ip6gre_inner_v6_multipath.sh * net.forwarding.ipip_flat_gre_key.sh * net.forwarding.ipip_flat_gre_keys.sh * net.forwarding.ipip_flat_gre.sh * net.forwarding.ipip_hier_gre_key.sh * net.forwarding.ipip_hier_gre_keys.sh * net.forwarding.ipip_hier_gre.sh * net.forwarding.loopback.sh * net.forwarding.mirror_gre_bound.sh * net.forwarding.mirror_gre_bridge_1d.sh * net.forwarding.mirror_gre_bridge_1d_vlan.sh * net.forwarding.mirror_gre_bridge_1q_lag.sh * net.forwarding.mirror_gre_bridge_1q.sh * net.forwarding.mirror_gre_changes.sh * net.forwarding.mirror_gre_flower.sh * net.forwarding.mirror_gre_lag_lacp.sh * net.forwarding.mirror_gre_neigh.sh * net.forwarding.mirror_gre_nh.sh * net.forwarding.mirror_gre.sh * net.forwarding.mirror_gre_vlan_bridge_1q.sh * net.forwarding.mirror_gre_vlan.sh * net.forwarding.mirror_vlan.sh * net.forwarding.router_bridge.sh * net.forwarding.router_bridge_vlan.sh * net.forwarding.router_broadcast.sh * net.forwarding.router_mpath_nh.sh * net.forwarding.router_multicast.sh * net.forwarding.router_multipath.sh * net.forwarding.router.sh * net.forwarding.router_vid_1.sh * net.forwarding.sch_ets.sh * net.forwarding.sch_tbf_ets.sh * net.forwarding.sch_tbf_prio.sh * net.forwarding.sch_tbf_root.sh * net.forwarding.tc_actions.sh * net.forwarding.tc_chains.sh * net.forwarding.tc_flower_router.sh * net.forwarding.tc_flower.sh * net.forwarding.tc_shblocks.sh * net.forwarding.tc_vlan_modify.sh * net.forwarding.vxlan_asymmetric.sh * net.forwarding.vxlan_bridge_1d_port_8472.sh * net.forwarding.vxlan_bridge_1d.sh * net.forwarding.vxlan_bridge_1q_port_8472.sh * net.forwarding.vxlan_bridge_1q.sh * net.forwarding.vxlan_symmetric.sh * net.mptcp.simult_flows.sh * netfilter.nft_nat.sh * netfilter.conntrack_icmp_related.sh * netfilter.nft_concat_range.sh * netfilter.nft_queue.sh * pidfd.pidfd_test * pidfd.pidfd_fdinfo_test * pidfd.pidfd_open_test * pidfd.pidfd_poll_test * proc.proc-fsconfig-hidepid * pstore.pstore_tests * ptrace.vmaccess.global.attach * ptrace.vmaccess * openat2.openat2_test * openat2.resolve_test * openat2.rename_attack_test * rseq.param_test * rseq.param_test_benchmark * rseq.param_test_compare_twice * rtc.rtctest * seccomp.seccomp_bpf.global.user_notification_filter_empty * seccomp.seccomp_bpf.global.user_notification_filter_empty_threaded * seccomp.seccomp_bpf.global.user_notification_addfd * seccomp.seccomp_bpf * seccomp.seccomp_benchmark * splice.short_splice_read.sh * sysctl.sysctl.sh * tc-testing.tdc.sh * vm.run_vmtests.sh ### x86, kselftest * bpf.test_verifier * bpf.test_maps * bpf.test_progs * bpf.test_dev_cgroup * bpf.test_tcpbpf_user * bpf.get_cgroup_id_user * bpf.test_socket_cookie * bpf.test_netcnt * bpf.test_tcpnotify_user * bpf.test_sysctl * bpf.test_progs-no_alu32 * bpf.test_xdp_redirect.sh * bpf.test_xdp_meta.sh * bpf.test_sock_addr.sh * bpf.test_tunnel.sh * bpf.test_lwt_seg6local.sh * bpf.test_skb_cgroup_id.sh * bpf.test_flow_dissector.sh * bpf.test_xdp_vlan_mode_generic.sh * bpf.test_xdp_vlan_mode_native.sh * bpf.test_lwt_ip_encap.sh * bpf.test_tcp_check_syncookie.sh * bpf.test_tc_tunnel.sh * bpf.test_tc_edt.sh * bpf.test_xdping.sh * bpf.test_bpftool.sh * cgroup.test_memcontrol * cgroup.test_kmem * cgroup.test_core * cgroup.test_freezer * clone3.clone3_cap_checkpoint_restore * core.close_range_test * filesystems.binderfs.binderfs_test * firmware.fw_run_tests.sh * ftrace.ftracetest * intel_pstate.run.sh * lkdtm.BUG.sh * lkdtm.WARNING.sh * lkdtm.WARNING_MESSAGE.sh * lkdtm.EXCEPTION.sh * lkdtm.CORRUPT_LIST_ADD.sh * lkdtm.CORRUPT_LIST_DEL.sh * lkdtm.STACK_GUARD_PAGE_LEADING.sh * lkdtm.STACK_GUARD_PAGE_TRAILING.sh * lkdtm.UNSET_SMEP.sh * lkdtm.CORRUPT_PAC.sh * lkdtm.UNALIGNED_LOAD_STORE_WRITE.sh * lkdtm.READ_AFTER_FREE.sh * lkdtm.READ_BUDDY_AFTER_FREE.sh * lkdtm.SLAB_FREE_DOUBLE.sh * lkdtm.SLAB_FREE_CROSS.sh * lkdtm.SLAB_FREE_PAGE.sh * lkdtm.EXEC_DATA.sh * lkdtm.EXEC_STACK.sh * lkdtm.EXEC_KMALLOC.sh * lkdtm.EXEC_VMALLOC.sh * lkdtm.EXEC_RODATA.sh * lkdtm.EXEC_USERSPACE.sh * lkdtm.EXEC_NULL.sh * lkdtm.ACCESS_USERSPACE.sh * lkdtm.ACCESS_NULL.sh * lkdtm.WRITE_RO.sh * lkdtm.WRITE_RO_AFTER_INIT.sh * lkdtm.WRITE_KERN.sh * lkdtm.REFCOUNT_INC_OVERFLOW.sh * lkdtm.REFCOUNT_ADD_OVERFLOW.sh * lkdtm.REFCOUNT_INC_NOT_ZERO_OVERFLOW.sh * lkdtm.REFCOUNT_ADD_NOT_ZERO_OVERFLOW.sh * lkdtm.REFCOUNT_DEC_ZERO.sh * lkdtm.REFCOUNT_DEC_NEGATIVE.sh * lkdtm.REFCOUNT_DEC_AND_TEST_NEGATIVE.sh * lkdtm.REFCOUNT_SUB_AND_TEST_NEGATIVE.sh * lkdtm.REFCOUNT_INC_ZERO.sh * lkdtm.REFCOUNT_ADD_ZERO.sh * lkdtm.REFCOUNT_INC_SATURATED.sh * lkdtm.REFCOUNT_DEC_SATURATED.sh * lkdtm.REFCOUNT_ADD_SATURATED.sh * lkdtm.REFCOUNT_INC_NOT_ZERO_SATURATED.sh * lkdtm.REFCOUNT_ADD_NOT_ZERO_SATURATED.sh * lkdtm.REFCOUNT_DEC_AND_TEST_SATURATED.sh * lkdtm.REFCOUNT_SUB_AND_TEST_SATURATED.sh * lkdtm.USERCOPY_HEAP_SIZE_TO.sh * lkdtm.USERCOPY_HEAP_SIZE_FROM.sh * lkdtm.USERCOPY_HEAP_WHITELIST_TO.sh * lkdtm.USERCOPY_HEAP_WHITELIST_FROM.sh * lkdtm.USERCOPY_STACK_FRAME_TO.sh * lkdtm.USERCOPY_STACK_FRAME_FROM.sh * lkdtm.USERCOPY_STACK_BEYOND.sh * lkdtm.USERCOPY_KERNEL.sh * lkdtm.STACKLEAK_ERASING.sh * lkdtm.CFI_FORWARD_PROTO.sh * mincore.mincore_selftest.global.check_file_mmap * mincore.mincore_selftest * mqueue.mq_perf_tests * net.run_netsocktests * net.xfrm_policy.sh * net.fib_tests.sh * net.fib-onlink-tests.sh * net.pmtu.sh * net.udpgso_bench.sh * net.psock_snd.sh * net.udpgro_bench.sh * net.udpgro.sh * net.test_vxlan_under_vrf.sh * net.l2tp.sh * net.traceroute.sh * net.altnames.sh * net.icmp_redirect.sh * net.txtimestamp.sh * net.vrf-xfrm-tests.sh * net.devlink_port_split.py * net.forwarding.bridge_igmp.sh * net.forwarding.bridge_port_isolation.sh * net.forwarding.bridge_sticky_fdb.sh * net.forwarding.bridge_vlan_aware.sh * net.forwarding.bridge_vlan_unaware.sh * net.forwarding.ethtool.sh * net.forwarding.gre_inner_v4_multipath.sh * net.forwarding.gre_inner_v6_multipath.sh * net.forwarding.gre_multipath.sh * net.forwarding.ip6gre_inner_v4_multipath.sh * net.forwarding.ip6gre_inner_v6_multipath.sh * net.forwarding.ipip_flat_gre_key.sh * net.forwarding.ipip_flat_gre_keys.sh * net.forwarding.ipip_flat_gre.sh * net.forwarding.ipip_hier_gre_key.sh * net.forwarding.ipip_hier_gre_keys.sh * net.forwarding.ipip_hier_gre.sh * net.forwarding.loopback.sh * net.forwarding.mirror_gre_bound.sh * net.forwarding.mirror_gre_bridge_1d.sh * net.forwarding.mirror_gre_bridge_1d_vlan.sh * net.forwarding.mirror_gre_bridge_1q_lag.sh * net.forwarding.mirror_gre_bridge_1q.sh * net.forwarding.mirror_gre_changes.sh * net.forwarding.mirror_gre_flower.sh * net.forwarding.mirror_gre_lag_lacp.sh * net.forwarding.mirror_gre_neigh.sh * net.forwarding.mirror_gre_nh.sh * net.forwarding.mirror_gre.sh * net.forwarding.mirror_gre_vlan_bridge_1q.sh * net.forwarding.mirror_gre_vlan.sh * net.forwarding.mirror_vlan.sh * net.forwarding.router_bridge.sh * net.forwarding.router_bridge_vlan.sh * net.forwarding.router_broadcast.sh * net.forwarding.router_mpath_nh.sh * net.forwarding.router_multicast.sh * net.forwarding.router_multipath.sh * net.forwarding.router.sh * net.forwarding.router_vid_1.sh * net.forwarding.sch_ets.sh * net.forwarding.sch_tbf_ets.sh * net.forwarding.sch_tbf_prio.sh * net.forwarding.sch_tbf_root.sh * net.forwarding.tc_actions.sh * net.forwarding.tc_chains.sh * net.forwarding.tc_flower_router.sh * net.forwarding.tc_flower.sh * net.forwarding.tc_shblocks.sh * net.forwarding.tc_vlan_modify.sh * net.forwarding.vxlan_asymmetric.sh * net.forwarding.vxlan_bridge_1d_port_8472.sh * net.forwarding.vxlan_bridge_1d.sh * net.forwarding.vxlan_bridge_1q_port_8472.sh * net.forwarding.vxlan_bridge_1q.sh * net.forwarding.vxlan_symmetric.sh * net.mptcp.mptcp_connect.sh * net.mptcp.simult_flows.sh * netfilter.nft_concat_range.sh * netfilter.nft_queue.sh * pidfd.pidfd_open_test * pidfd.pidfd_poll_test * proc.proc-fsconfig-hidepid * pstore.pstore_tests * ptrace.vmaccess.global.attach * ptrace.vmaccess * openat2.openat2_test * openat2.resolve_test * openat2.rename_attack_test * rtc.rtctest * seccomp.seccomp_bpf.global.user_notification_filter_empty * seccomp.seccomp_bpf.global.user_notification_filter_empty_threaded * seccomp.seccomp_bpf.global.user_notification_addfd * seccomp.seccomp_bpf * seccomp.seccomp_benchmark * splice.short_splice_read.sh * vm.run_vmtests.sh * x86.syscall_numbering_64 ### x86, kselftest-vsyscall-mode-native * bpf.test_verifier * bpf.test_maps * bpf.test_progs * bpf.test_dev_cgroup * bpf.test_tcpbpf_user * bpf.get_cgroup_id_user * bpf.test_socket_cookie * bpf.test_netcnt * bpf.test_tcpnotify_user * bpf.test_sysctl * bpf.test_progs-no_alu32 * bpf.test_xdp_redirect.sh * bpf.test_xdp_meta.sh * bpf.test_sock_addr.sh * bpf.test_tunnel.sh * bpf.test_lwt_seg6local.sh * bpf.test_skb_cgroup_id.sh * bpf.test_flow_dissector.sh * bpf.test_xdp_vlan_mode_generic.sh * bpf.test_xdp_vlan_mode_native.sh * bpf.test_lwt_ip_encap.sh * bpf.test_tcp_check_syncookie.sh * bpf.test_tc_tunnel.sh * bpf.test_tc_edt.sh * bpf.test_xdping.sh * bpf.test_bpftool.sh * cgroup.test_memcontrol * cgroup.test_kmem * cgroup.test_core * cgroup.test_freezer * clone3.clone3_cap_checkpoint_restore * core.close_range_test * filesystems.binderfs.binderfs_test * firmware.fw_run_tests.sh * ftrace.ftracetest * intel_pstate.run.sh * lkdtm.BUG.sh * lkdtm.WARNING.sh * lkdtm.WARNING_MESSAGE.sh * lkdtm.EXCEPTION.sh * lkdtm.CORRUPT_LIST_ADD.sh * lkdtm.CORRUPT_LIST_DEL.sh * lkdtm.STACK_GUARD_PAGE_LEADING.sh * lkdtm.STACK_GUARD_PAGE_TRAILING.sh * lkdtm.UNSET_SMEP.sh * lkdtm.CORRUPT_PAC.sh * lkdtm.UNALIGNED_LOAD_STORE_WRITE.sh * lkdtm.READ_AFTER_FREE.sh * lkdtm.READ_BUDDY_AFTER_FREE.sh * lkdtm.SLAB_FREE_DOUBLE.sh * lkdtm.SLAB_FREE_CROSS.sh * lkdtm.SLAB_FREE_PAGE.sh * lkdtm.EXEC_DATA.sh * lkdtm.EXEC_STACK.sh * lkdtm.EXEC_KMALLOC.sh * lkdtm.EXEC_VMALLOC.sh * lkdtm.EXEC_RODATA.sh * lkdtm.EXEC_USERSPACE.sh * lkdtm.EXEC_NULL.sh * lkdtm.ACCESS_USERSPACE.sh * lkdtm.ACCESS_NULL.sh * lkdtm.WRITE_RO.sh * lkdtm.WRITE_RO_AFTER_INIT.sh * lkdtm.WRITE_KERN.sh * lkdtm.REFCOUNT_INC_OVERFLOW.sh * lkdtm.REFCOUNT_ADD_OVERFLOW.sh * lkdtm.REFCOUNT_INC_NOT_ZERO_OVERFLOW.sh * lkdtm.REFCOUNT_ADD_NOT_ZERO_OVERFLOW.sh * lkdtm.REFCOUNT_DEC_ZERO.sh * lkdtm.REFCOUNT_DEC_NEGATIVE.sh * lkdtm.REFCOUNT_DEC_AND_TEST_NEGATIVE.sh * lkdtm.REFCOUNT_SUB_AND_TEST_NEGATIVE.sh * lkdtm.REFCOUNT_INC_ZERO.sh * lkdtm.REFCOUNT_ADD_ZERO.sh * lkdtm.REFCOUNT_INC_SATURATED.sh * lkdtm.REFCOUNT_DEC_SATURATED.sh * lkdtm.REFCOUNT_ADD_SATURATED.sh * lkdtm.REFCOUNT_INC_NOT_ZERO_SATURATED.sh * lkdtm.REFCOUNT_ADD_NOT_ZERO_SATURATED.sh * lkdtm.REFCOUNT_DEC_AND_TEST_SATURATED.sh * lkdtm.REFCOUNT_SUB_AND_TEST_SATURATED.sh * lkdtm.USERCOPY_HEAP_SIZE_TO.sh * lkdtm.USERCOPY_HEAP_SIZE_FROM.sh * lkdtm.USERCOPY_HEAP_WHITELIST_TO.sh * lkdtm.USERCOPY_HEAP_WHITELIST_FROM.sh * lkdtm.USERCOPY_STACK_FRAME_TO.sh * lkdtm.USERCOPY_STACK_FRAME_FROM.sh * lkdtm.USERCOPY_STACK_BEYOND.sh * lkdtm.USERCOPY_KERNEL.sh * lkdtm.STACKLEAK_ERASING.sh * lkdtm.CFI_FORWARD_PROTO.sh * mincore.mincore_selftest.global.check_file_mmap * mincore.mincore_selftest * mqueue.mq_perf_tests * net.run_netsocktests * net.xfrm_policy.sh * net.fib_tests.sh * net.fib-onlink-tests.sh * net.pmtu.sh * net.udpgso_bench.sh * net.psock_snd.sh * net.udpgro_bench.sh * net.udpgro.sh * net.test_vxlan_under_vrf.sh * net.l2tp.sh * net.traceroute.sh * net.altnames.sh * net.icmp_redirect.sh * net.txtimestamp.sh * net.vrf-xfrm-tests.sh * net.devlink_port_split.py * net.forwarding.bridge_igmp.sh * net.forwarding.bridge_port_isolation.sh * net.forwarding.bridge_sticky_fdb.sh * net.forwarding.bridge_vlan_aware.sh * net.forwarding.bridge_vlan_unaware.sh * net.forwarding.ethtool.sh * net.forwarding.gre_inner_v4_multipath.sh * net.forwarding.gre_inner_v6_multipath.sh * net.forwarding.gre_multipath.sh * net.forwarding.ip6gre_inner_v4_multipath.sh * net.forwarding.ip6gre_inner_v6_multipath.sh * net.forwarding.ipip_flat_gre_key.sh * net.forwarding.ipip_flat_gre_keys.sh * net.forwarding.ipip_flat_gre.sh * net.forwarding.ipip_hier_gre_key.sh * net.forwarding.ipip_hier_gre_keys.sh * net.forwarding.ipip_hier_gre.sh * net.forwarding.loopback.sh * net.forwarding.mirror_gre_bound.sh * net.forwarding.mirror_gre_bridge_1d.sh * net.forwarding.mirror_gre_bridge_1d_vlan.sh * net.forwarding.mirror_gre_bridge_1q_lag.sh * net.forwarding.mirror_gre_bridge_1q.sh * net.forwarding.mirror_gre_changes.sh * net.forwarding.mirror_gre_flower.sh * net.forwarding.mirror_gre_lag_lacp.sh * net.forwarding.mirror_gre_neigh.sh * net.forwarding.mirror_gre_nh.sh * net.forwarding.mirror_gre.sh * net.forwarding.mirror_gre_vlan_bridge_1q.sh * net.forwarding.mirror_gre_vlan.sh * net.forwarding.mirror_vlan.sh * net.forwarding.router_bridge.sh * net.forwarding.router_bridge_vlan.sh * net.forwarding.router_broadcast.sh * net.forwarding.router_mpath_nh.sh * net.forwarding.router_multicast.sh * net.forwarding.router_multipath.sh * net.forwarding.router.sh * net.forwarding.router_vid_1.sh * net.forwarding.sch_ets.sh * net.forwarding.sch_tbf_ets.sh * net.forwarding.sch_tbf_prio.sh * net.forwarding.sch_tbf_root.sh * net.forwarding.tc_actions.sh * net.forwarding.tc_chains.sh * net.forwarding.tc_flower_router.sh * net.forwarding.tc_flower.sh * net.forwarding.tc_shblocks.sh * net.forwarding.tc_vlan_modify.sh * net.forwarding.vxlan_asymmetric.sh * net.forwarding.vxlan_bridge_1d_port_8472.sh * net.forwarding.vxlan_bridge_1d.sh * net.forwarding.vxlan_bridge_1q_port_8472.sh * net.forwarding.vxlan_bridge_1q.sh * net.forwarding.vxlan_symmetric.sh * net.mptcp.simult_flows.sh * netfilter.nft_concat_range.sh * netfilter.nft_queue.sh * pidfd.pidfd_open_test * pidfd.pidfd_poll_test * proc.proc-fsconfig-hidepid * pstore.pstore_tests * ptrace.vmaccess.global.attach * ptrace.vmaccess * openat2.openat2_test * openat2.resolve_test * openat2.rename_attack_test * seccomp.seccomp_bpf.global.user_notification_filter_empty * seccomp.seccomp_bpf.global.user_notification_filter_empty_threaded * seccomp.seccomp_bpf.global.user_notification_addfd * seccomp.seccomp_bpf * seccomp.seccomp_benchmark * splice.short_splice_read.sh * vm.run_vmtests.sh * x86.syscall_numbering_64 ### x86, kselftest-vsyscall-mode-none * bpf.test_verifier * bpf.test_maps * bpf.test_progs * bpf.test_dev_cgroup * bpf.test_tcpbpf_user * bpf.get_cgroup_id_user * bpf.test_socket_cookie * bpf.test_netcnt * bpf.test_tcpnotify_user * bpf.test_sysctl * bpf.test_progs-no_alu32 * bpf.test_xdp_redirect.sh * bpf.test_xdp_meta.sh * bpf.test_sock_addr.sh * bpf.test_tunnel.sh * bpf.test_lwt_seg6local.sh * bpf.test_skb_cgroup_id.sh * bpf.test_flow_dissector.sh * bpf.test_xdp_vlan_mode_generic.sh * bpf.test_xdp_vlan_mode_native.sh * bpf.test_lwt_ip_encap.sh * bpf.test_tcp_check_syncookie.sh * bpf.test_tc_tunnel.sh * bpf.test_tc_edt.sh * bpf.test_xdping.sh * bpf.test_bpftool.sh * cgroup.test_memcontrol * cgroup.test_kmem * cgroup.test_core * cgroup.test_freezer * clone3.clone3_cap_checkpoint_restore * core.close_range_test * filesystems.binderfs.binderfs_test * firmware.fw_run_tests.sh * ftrace.ftracetest * intel_pstate.run.sh * lkdtm.BUG.sh * lkdtm.WARNING.sh * lkdtm.WARNING_MESSAGE.sh * lkdtm.EXCEPTION.sh * lkdtm.CORRUPT_LIST_ADD.sh * lkdtm.CORRUPT_LIST_DEL.sh * lkdtm.STACK_GUARD_PAGE_LEADING.sh * lkdtm.STACK_GUARD_PAGE_TRAILING.sh * lkdtm.UNSET_SMEP.sh * lkdtm.CORRUPT_PAC.sh * lkdtm.UNALIGNED_LOAD_STORE_WRITE.sh * lkdtm.READ_AFTER_FREE.sh * lkdtm.READ_BUDDY_AFTER_FREE.sh * lkdtm.SLAB_FREE_DOUBLE.sh * lkdtm.SLAB_FREE_CROSS.sh * lkdtm.SLAB_FREE_PAGE.sh * lkdtm.EXEC_DATA.sh * lkdtm.EXEC_STACK.sh * lkdtm.EXEC_KMALLOC.sh * lkdtm.EXEC_VMALLOC.sh * lkdtm.EXEC_RODATA.sh * lkdtm.EXEC_USERSPACE.sh * lkdtm.EXEC_NULL.sh * lkdtm.ACCESS_USERSPACE.sh * lkdtm.ACCESS_NULL.sh * lkdtm.WRITE_RO.sh * lkdtm.WRITE_RO_AFTER_INIT.sh * lkdtm.WRITE_KERN.sh * lkdtm.REFCOUNT_INC_OVERFLOW.sh * lkdtm.REFCOUNT_ADD_OVERFLOW.sh * lkdtm.REFCOUNT_INC_NOT_ZERO_OVERFLOW.sh * lkdtm.REFCOUNT_ADD_NOT_ZERO_OVERFLOW.sh * lkdtm.REFCOUNT_DEC_ZERO.sh * lkdtm.REFCOUNT_DEC_NEGATIVE.sh * lkdtm.REFCOUNT_DEC_AND_TEST_NEGATIVE.sh * lkdtm.REFCOUNT_SUB_AND_TEST_NEGATIVE.sh * lkdtm.REFCOUNT_INC_ZERO.sh * lkdtm.REFCOUNT_ADD_ZERO.sh * lkdtm.REFCOUNT_INC_SATURATED.sh * lkdtm.REFCOUNT_DEC_SATURATED.sh * lkdtm.REFCOUNT_ADD_SATURATED.sh * lkdtm.REFCOUNT_INC_NOT_ZERO_SATURATED.sh * lkdtm.REFCOUNT_ADD_NOT_ZERO_SATURATED.sh * lkdtm.REFCOUNT_DEC_AND_TEST_SATURATED.sh * lkdtm.REFCOUNT_SUB_AND_TEST_SATURATED.sh * lkdtm.USERCOPY_HEAP_SIZE_TO.sh * lkdtm.USERCOPY_HEAP_SIZE_FROM.sh * lkdtm.USERCOPY_HEAP_WHITELIST_TO.sh * lkdtm.USERCOPY_HEAP_WHITELIST_FROM.sh * lkdtm.USERCOPY_STACK_FRAME_TO.sh * lkdtm.USERCOPY_STACK_FRAME_FROM.sh * lkdtm.USERCOPY_STACK_BEYOND.sh * lkdtm.USERCOPY_KERNEL.sh * lkdtm.STACKLEAK_ERASING.sh * lkdtm.CFI_FORWARD_PROTO.sh * mincore.mincore_selftest.global.check_file_mmap * mincore.mincore_selftest * mqueue.mq_perf_tests * net.run_netsocktests * net.xfrm_policy.sh * net.fib_tests.sh * net.fib-onlink-tests.sh * net.pmtu.sh * net.udpgso_bench.sh * net.psock_snd.sh * net.udpgro_bench.sh * net.udpgro.sh * net.test_vxlan_under_vrf.sh * net.l2tp.sh * net.traceroute.sh * net.altnames.sh * net.icmp_redirect.sh * net.txtimestamp.sh * net.vrf-xfrm-tests.sh * net.devlink_port_split.py * net.forwarding.bridge_igmp.sh * net.forwarding.bridge_port_isolation.sh * net.forwarding.bridge_sticky_fdb.sh * net.forwarding.bridge_vlan_aware.sh * net.forwarding.bridge_vlan_unaware.sh * net.forwarding.ethtool.sh * net.forwarding.gre_inner_v4_multipath.sh * net.forwarding.gre_inner_v6_multipath.sh * net.forwarding.gre_multipath.sh * net.forwarding.ip6gre_inner_v4_multipath.sh * net.forwarding.ip6gre_inner_v6_multipath.sh * net.forwarding.ipip_flat_gre_key.sh * net.forwarding.ipip_flat_gre_keys.sh * net.forwarding.ipip_flat_gre.sh * net.forwarding.ipip_hier_gre_key.sh * net.forwarding.ipip_hier_gre_keys.sh * net.forwarding.ipip_hier_gre.sh * net.forwarding.loopback.sh * net.forwarding.mirror_gre_bound.sh * net.forwarding.mirror_gre_bridge_1d.sh * net.forwarding.mirror_gre_bridge_1d_vlan.sh * net.forwarding.mirror_gre_bridge_1q_lag.sh * net.forwarding.mirror_gre_bridge_1q.sh * net.forwarding.mirror_gre_changes.sh * net.forwarding.mirror_gre_flower.sh * net.forwarding.mirror_gre_lag_lacp.sh * net.forwarding.mirror_gre_neigh.sh * net.forwarding.mirror_gre_nh.sh * net.forwarding.mirror_gre.sh * net.forwarding.mirror_gre_vlan_bridge_1q.sh * net.forwarding.mirror_gre_vlan.sh * net.forwarding.mirror_vlan.sh * net.forwarding.router_bridge.sh * net.forwarding.router_bridge_vlan.sh * net.forwarding.router_broadcast.sh * net.forwarding.router_mpath_nh.sh * net.forwarding.router_multicast.sh * net.forwarding.router_multipath.sh * net.forwarding.router.sh * net.forwarding.router_vid_1.sh * net.forwarding.sch_ets.sh * net.forwarding.sch_tbf_ets.sh * net.forwarding.sch_tbf_prio.sh * net.forwarding.sch_tbf_root.sh * net.forwarding.tc_actions.sh * net.forwarding.tc_chains.sh * net.forwarding.tc_flower_router.sh * net.forwarding.tc_flower.sh * net.forwarding.tc_shblocks.sh * net.forwarding.tc_vlan_modify.sh * net.forwarding.vxlan_asymmetric.sh * net.forwarding.vxlan_bridge_1d_port_8472.sh * net.forwarding.vxlan_bridge_1d.sh * net.forwarding.vxlan_bridge_1q_port_8472.sh * net.forwarding.vxlan_bridge_1q.sh * net.forwarding.vxlan_symmetric.sh * net.mptcp.simult_flows.sh * netfilter.nft_concat_range.sh * netfilter.nft_queue.sh * pidfd.pidfd_open_test * pidfd.pidfd_poll_test * proc.proc-fsconfig-hidepid * pstore.pstore_tests * ptrace.vmaccess.global.attach * ptrace.vmaccess * openat2.openat2_test * openat2.resolve_test * openat2.rename_attack_test * rtc.rtctest * seccomp.seccomp_bpf.global.user_notification_filter_empty * seccomp.seccomp_bpf.global.user_notification_filter_empty_threaded * seccomp.seccomp_bpf.global.user_notification_addfd * seccomp.seccomp_bpf * seccomp.seccomp_benchmark * splice.short_splice_read.sh * vm.run_vmtests.sh * x86.syscall_numbering_64 ## Skips ### i386, kselftest * breakpoints.breakpoint_test * breakpoints.step_after_suspend_test * net.msg_zerocopy.sh * net.rtnetlink.sh * net.udpgro.sh * net.xfrm_policy.sh * netfilter.bridge_brouter.sh * netfilter.conntrack_icmp_related.sh * netfilter.nft_flowtable.sh * netfilter.nft_nat.sh * netfilter.nft_trans_stress.sh * pidfd.pidfd_wait * zram.zram.sh * bpf.test_xdp_veth.sh * bpf.test_bpftool_metadata.sh * cgroup.test_stress.sh * efivarfs.efivarfs.sh * fpu.run_test_fpu.sh * ir.ir_loopback.sh * kexec.test_kexec_load.sh * kexec.test_kexec_file_load.sh * livepatch.test-livepatch.sh * livepatch.test-callbacks.sh * livepatch.test-shadow-vars.sh * livepatch.test-state.sh * livepatch.test-ftrace.sh * lkdtm.PANIC.sh * lkdtm.LOOP.sh * lkdtm.EXHAUST_STACK.sh * lkdtm.CORRUPT_STACK.sh * lkdtm.CORRUPT_STACK_STRONG.sh * lkdtm.OVERWRITE_ALLOCATION.sh * lkdtm.WRITE_AFTER_FREE.sh * lkdtm.WRITE_BUDDY_AFTER_FREE.sh * lkdtm.SOFTLOCKUP.sh * lkdtm.HARDLOCKUP.sh * lkdtm.SPINLOCKUP.sh * lkdtm.HUNG_TASK.sh * lkdtm.REFCOUNT_TIMING.sh * lkdtm.ATOMIC_TIMING.sh * memory-hotplug.mem-on-off-test.sh * net.reuseport_bpf_numa * net.drop_monitor_tests.sh * net.mptcp.diag.sh * netfilter.ipvs.sh * netfilter.nft_conntrack_helper.sh * netfilter.nft_meta.sh * proc.proc-pid-vm * pstore.pstore_post_reboot_tests * tpm2.test_smoke.sh * tpm2.test_space.sh ### juno-r2, kselftest * mqueue.mq_perf_tests * breakpoints.breakpoint_test_arm64 * breakpoints.step_after_suspend_test * net.msg_zerocopy.sh * net.rtnetlink.sh * netfilter.bridge_brouter.sh * netfilter.nft_flowtable.sh * netfilter.nft_trans_stress.sh * pidfd.pidfd_wait * rseq.run_param_test.sh * zram.zram.sh * arm64.sve-ptrace * arm64.sve-probe-vls * bpf.test_xdp_veth.sh * bpf.test_bpftool_metadata.sh * cgroup.test_stress.sh * efivarfs.efivarfs.sh * fpu.run_test_fpu.sh * intel_pstate.run.sh * ir.ir_loopback.sh * livepatch.test-livepatch.sh * livepatch.test-callbacks.sh * livepatch.test-shadow-vars.sh * livepatch.test-state.sh * livepatch.test-ftrace.sh * lkdtm.PANIC.sh * lkdtm.LOOP.sh * lkdtm.EXHAUST_STACK.sh * lkdtm.CORRUPT_STACK.sh * lkdtm.CORRUPT_STACK_STRONG.sh * lkdtm.DOUBLE_FAULT.sh * lkdtm.OVERWRITE_ALLOCATION.sh * lkdtm.WRITE_AFTER_FREE.sh * lkdtm.WRITE_BUDDY_AFTER_FREE.sh * lkdtm.SOFTLOCKUP.sh * lkdtm.HARDLOCKUP.sh * lkdtm.SPINLOCKUP.sh * lkdtm.HUNG_TASK.sh * lkdtm.REFCOUNT_TIMING.sh * lkdtm.ATOMIC_TIMING.sh * net.xfrm_policy.sh * net.drop_monitor_tests.sh * net.mptcp.diag.sh * netfilter.ipvs.sh * netfilter.nft_conntrack_helper.sh * netfilter.nft_meta.sh * proc.proc-pid-vm * pstore.pstore_post_reboot_tests * tpm2.test_smoke.sh * tpm2.test_space.sh ### x86, kselftest * breakpoints.breakpoint_test * breakpoints.step_after_suspend_test * net.msg_zerocopy.sh * net.rtnetlink.sh * netfilter.bridge_brouter.sh * netfilter.conntrack_icmp_related.sh * netfilter.nft_flowtable.sh * netfilter.nft_nat.sh * netfilter.nft_trans_stress.sh * pidfd.pidfd_wait * proc.proc-pid-vm * zram.zram.sh * bpf.test_xdp_veth.sh * bpf.test_bpftool_metadata.sh * cgroup.test_stress.sh * efivarfs.efivarfs.sh * fpu.run_test_fpu.sh * ir.ir_loopback.sh * kexec.test_kexec_load.sh * kexec.test_kexec_file_load.sh * kvm.mmio_warning_test * kvm.svm_vmcall_test * lkdtm.PANIC.sh * lkdtm.LOOP.sh * lkdtm.EXHAUST_STACK.sh * lkdtm.CORRUPT_STACK.sh * lkdtm.CORRUPT_STACK_STRONG.sh * lkdtm.DOUBLE_FAULT.sh * lkdtm.OVERWRITE_ALLOCATION.sh * lkdtm.WRITE_AFTER_FREE.sh * lkdtm.WRITE_BUDDY_AFTER_FREE.sh * lkdtm.SOFTLOCKUP.sh * lkdtm.HARDLOCKUP.sh * lkdtm.SPINLOCKUP.sh * lkdtm.HUNG_TASK.sh * lkdtm.REFCOUNT_TIMING.sh * lkdtm.ATOMIC_TIMING.sh * net.drop_monitor_tests.sh * net.mptcp.diag.sh * netfilter.ipvs.sh * netfilter.nft_conntrack_helper.sh * netfilter.nft_meta.sh * pstore.pstore_post_reboot_tests * tpm2.test_smoke.sh * tpm2.test_space.sh ### x86, kselftest-vsyscall-mode-native * breakpoints.breakpoint_test * breakpoints.step_after_suspend_test * net.msg_zerocopy.sh * net.rtnetlink.sh * netfilter.bridge_brouter.sh * netfilter.conntrack_icmp_related.sh * netfilter.nft_flowtable.sh * netfilter.nft_nat.sh * netfilter.nft_trans_stress.sh * pidfd.pidfd_wait * proc.proc-pid-vm * zram.zram.sh * bpf.test_xdp_veth.sh * bpf.test_bpftool_metadata.sh * cgroup.test_stress.sh * efivarfs.efivarfs.sh * fpu.run_test_fpu.sh * ir.ir_loopback.sh * kexec.test_kexec_load.sh * kexec.test_kexec_file_load.sh * kvm.mmio_warning_test * kvm.svm_vmcall_test * lkdtm.PANIC.sh * lkdtm.LOOP.sh * lkdtm.EXHAUST_STACK.sh * lkdtm.CORRUPT_STACK.sh * lkdtm.CORRUPT_STACK_STRONG.sh * lkdtm.DOUBLE_FAULT.sh * lkdtm.OVERWRITE_ALLOCATION.sh * lkdtm.WRITE_AFTER_FREE.sh * lkdtm.WRITE_BUDDY_AFTER_FREE.sh * lkdtm.SOFTLOCKUP.sh * lkdtm.HARDLOCKUP.sh * lkdtm.SPINLOCKUP.sh * lkdtm.HUNG_TASK.sh * lkdtm.REFCOUNT_TIMING.sh * lkdtm.ATOMIC_TIMING.sh * net.drop_monitor_tests.sh * net.mptcp.diag.sh * netfilter.ipvs.sh * netfilter.nft_conntrack_helper.sh * netfilter.nft_meta.sh * pstore.pstore_post_reboot_tests * tpm2.test_smoke.sh * tpm2.test_space.sh ### x86, kselftest-vsyscall-mode-none * breakpoints.breakpoint_test * breakpoints.step_after_suspend_test * net.msg_zerocopy.sh * net.rtnetlink.sh * netfilter.bridge_brouter.sh * netfilter.conntrack_icmp_related.sh * netfilter.nft_flowtable.sh * netfilter.nft_nat.sh * netfilter.nft_trans_stress.sh * pidfd.pidfd_wait * proc.proc-pid-vm * zram.zram.sh * bpf.test_xdp_veth.sh * bpf.test_bpftool_metadata.sh * cgroup.test_stress.sh * efivarfs.efivarfs.sh * fpu.run_test_fpu.sh * ir.ir_loopback.sh * kexec.test_kexec_load.sh * kexec.test_kexec_file_load.sh * kvm.mmio_warning_test * kvm.svm_vmcall_test * lkdtm.PANIC.sh * lkdtm.LOOP.sh * lkdtm.EXHAUST_STACK.sh * lkdtm.CORRUPT_STACK.sh * lkdtm.CORRUPT_STACK_STRONG.sh * lkdtm.DOUBLE_FAULT.sh * lkdtm.OVERWRITE_ALLOCATION.sh * lkdtm.WRITE_AFTER_FREE.sh * lkdtm.WRITE_BUDDY_AFTER_FREE.sh * lkdtm.SOFTLOCKUP.sh * lkdtm.HARDLOCKUP.sh * lkdtm.SPINLOCKUP.sh * lkdtm.HUNG_TASK.sh * lkdtm.REFCOUNT_TIMING.sh * lkdtm.ATOMIC_TIMING.sh * net.drop_monitor_tests.sh * net.mptcp.diag.sh * netfilter.ipvs.sh * netfilter.nft_conntrack_helper.sh * netfilter.nft_meta.sh * pstore.pstore_post_reboot_tests * tpm2.test_smoke.sh * tpm2.test_space.sh -- Linaro LKFT https://lkft.linaro.org

5 years, 1 month

1
0
0 0

[PATCH] selftests/vm: 10x speedup for hmm-tests

by John Hubbard

This patch reduces the running time for hmm-tests from about 10+ seconds, to just under 1.0 second, for an approximately 10x speedup. That brings it in line with most of the other tests in selftests/vm, which mostly run in < 1 sec. This is done with a one-line change that simply reduces the number of iterations of several tests, from 256, to 10. Thanks to Ralph Campbell for suggesting changing NTIMES as a way to get the speedup. Suggested-by: Ralph Campbell <rcampbell(a)nvidia.com> Signed-off-by: John Hubbard <jhubbard(a)nvidia.com> --- This is based on mmotm. tools/testing/selftests/vm/hmm-tests.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/testing/selftests/vm/hmm-tests.c b/tools/testing/selftests/vm/hmm-tests.c index 6b79723d7dc6..5d1ac691b9f4 100644 --- a/tools/testing/selftests/vm/hmm-tests.c +++ b/tools/testing/selftests/vm/hmm-tests.c @@ -49,7 +49,7 @@ struct hmm_buffer { #define TWOMEG (1 << 21) #define HMM_BUFFER_SIZE (1024 << 12) #define HMM_PATH_MAX 64 -#define NTIMES 256 +#define NTIMES 10 #define ALIGN(x, a) (((x) + (a - 1)) & (~((a) - 1))) -- 2.28.0

5 years, 1 month

2
3
0 0

[PATCH bpf-next v4 0/6] bpf: BTF support for ksyms

by Hao Luo

v3 -> v4: - Rebasing - Cast bpf_[per|this]_cpu_ptr's parameter to void __percpu * before passing into per_cpu_ptr. v2 -> v3: - Rename functions and variables in verifier for better readability. - Stick to logging message convention in libbpf. - Move bpf_per_cpu_ptr and bpf_this_cpu_ptr from trace-specific helper set to base helper set. - More specific test in ksyms_btf. - Fix return type cast in bpf_*_cpu_ptr. - Fix btf leak in ksyms_btf selftest. - Fix return error code for kallsyms_find(). v1 -> v2: - Move check_pseudo_btf_id from check_ld_imm() to replace_map_fd_with_map_ptr() and rename the latter. - Add bpf_this_cpu_ptr(). - Use bpf_core_types_are_compat() in libbpf.c for checking type compatibility. - Rewrite typed ksym extern type in BTF with int to save space. - Minor revision of bpf_per_cpu_ptr()'s comments. - Avoid using long in tests that use skeleton. - Refactored test_ksyms.c by moving kallsyms_find() to trace_helpers.c - Fold the patches that sync include/linux/uapi and tools/include/linux/uapi. rfc -> v1: - Encode VAR's btf_id for PSEUDO_BTF_ID. - More checks in verifier. Checking the btf_id passed as PSEUDO_BTF_ID is valid VAR, its name and type. - Checks in libbpf on type compatibility of ksyms. - Add bpf_per_cpu_ptr() to access kernel percpu vars. Introduced new ARG and RET types for this helper. This patch series extends the previously added __ksym externs with btf support. Right now the __ksym externs are treated as pure 64-bit scalar value. Libbpf replaces ld_imm64 insn of __ksym by its kernel address at load time. This patch series extend those externs with their btf info. Note that btf support for __ksym must come with the kernel btf that has VARs encoded to work properly. The corresponding chagnes in pahole is available at [1] (with a fix at [2] for gcc 4.9+). The first 3 patches in this series add support for general kernel global variables, which include verifier checking (01/06), libpf support (02/06) and selftests for getting typed ksym extern's kernel address (03/06). The next 3 patches extends that capability further by introducing helpers bpf_per_cpu_ptr() and bpf_this_cpu_ptr(), which allows accessing kernel percpu variables correctly (04/06 and 05/06). The tests of this feature were performed against pahole that is extended with [1] and [2]. For kernel BTF that does not have VARs encoded, the selftests will be skipped. [1] https://git.kernel.org/pub/scm/devel/pahole/pahole.git/commit/?id=f3d9054ba… [2] https://www.spinics.net/lists/dwarves/msg00451.html Hao Luo (6): bpf: Introduce pseudo_btf_id bpf/libbpf: BTF support for typed ksyms selftests/bpf: ksyms_btf to test typed ksyms bpf: Introduce bpf_per_cpu_ptr() bpf: Introducte bpf_this_cpu_ptr() bpf/selftests: Test for bpf_per_cpu_ptr() and bpf_this_cpu_ptr() include/linux/bpf.h | 6 + include/linux/bpf_verifier.h | 7 + include/linux/btf.h | 26 +++ include/uapi/linux/bpf.h | 67 +++++- kernel/bpf/btf.c | 25 --- kernel/bpf/helpers.c | 32 +++ kernel/bpf/verifier.c | 190 ++++++++++++++++-- kernel/trace/bpf_trace.c | 4 + tools/include/uapi/linux/bpf.h | 67 +++++- tools/lib/bpf/libbpf.c | 112 +++++++++-- .../testing/selftests/bpf/prog_tests/ksyms.c | 38 ++-- .../selftests/bpf/prog_tests/ksyms_btf.c | 88 ++++++++ .../selftests/bpf/progs/test_ksyms_btf.c | 55 +++++ tools/testing/selftests/bpf/trace_helpers.c | 27 +++ tools/testing/selftests/bpf/trace_helpers.h | 4 + 15 files changed, 653 insertions(+), 95 deletions(-) create mode 100644 tools/testing/selftests/bpf/prog_tests/ksyms_btf.c create mode 100644 tools/testing/selftests/bpf/progs/test_ksyms_btf.c -- 2.28.0.709.gb0816b6eb0-goog

5 years, 1 month

2
12
0 0

[PATCH v5 00/16] Introduce partial kernel_read_file() support

by Kees Cook

v5: - add more reviews (thank you!) - add "description" string to post_load_data API (mimi) - drop bug fix that got taken already v4: https://lore.kernel.org/lkml/20200729175845.1745471-1-keescook@chromium.org/ v3: https://lore.kernel.org/lkml/20200724213640.389191-1-keescook@chromium.org/ v2: lost to the ether v1: https://lore.kernel.org/lkml/20200717174309.1164575-1-keescook@chromium.org/ Hi, Here's my tree for adding partial read support in kernel_read_file(), which fixes a number of issues along the way. It's got Scott's firmware and IMA patches ported and everything tests cleanly for me (even with CONFIG_IMA_APPRAISE=y), and now appears to pass 0day. :) The intention is for this to go via Greg's tree since Scott's driver code will depend on it. Thanks, -Kees Kees Cook (12): fs/kernel_read_file: Remove FIRMWARE_PREALLOC_BUFFER enum fs/kernel_read_file: Remove FIRMWARE_EFI_EMBEDDED enum fs/kernel_read_file: Split into separate source file fs/kernel_read_file: Remove redundant size argument fs/kernel_read_file: Switch buffer size arg to size_t fs/kernel_read_file: Add file_size output argument LSM: Introduce kernel_post_load_data() hook firmware_loader: Use security_post_load_data() module: Call security_kernel_post_load_data() LSM: Add "contents" flag to kernel_read_file hook fs/kernel_file_read: Add "offset" arg for partial reads firmware: Store opt_flags in fw_priv Scott Branden (4): fs/kernel_read_file: Split into separate include file IMA: Add support for file reads without contents firmware: Add request_partial_firmware_into_buf() test_firmware: Test partial read support drivers/base/firmware_loader/fallback.c | 19 +- drivers/base/firmware_loader/fallback.h | 5 +- .../base/firmware_loader/fallback_platform.c | 12 +- drivers/base/firmware_loader/firmware.h | 7 +- drivers/base/firmware_loader/main.c | 135 ++++++++++--- fs/Makefile | 3 +- fs/exec.c | 132 +----------- fs/kernel_read_file.c | 189 ++++++++++++++++++ include/linux/firmware.h | 12 ++ include/linux/fs.h | 39 ---- include/linux/ima.h | 20 +- include/linux/kernel_read_file.h | 55 +++++ include/linux/lsm_hook_defs.h | 6 +- include/linux/lsm_hooks.h | 13 ++ include/linux/security.h | 21 +- kernel/kexec.c | 2 +- kernel/kexec_file.c | 19 +- kernel/module.c | 24 ++- lib/test_firmware.c | 154 ++++++++++++-- security/integrity/digsig.c | 8 +- security/integrity/ima/ima_fs.c | 10 +- security/integrity/ima/ima_main.c | 73 +++++-- security/integrity/ima/ima_policy.c | 1 + security/loadpin/loadpin.c | 17 +- security/security.c | 28 ++- security/selinux/hooks.c | 8 +- .../selftests/firmware/fw_filesystem.sh | 91 +++++++++ 27 files changed, 807 insertions(+), 296 deletions(-) create mode 100644 fs/kernel_read_file.c create mode 100644 include/linux/kernel_read_file.h -- 2.25.1

5 years, 1 month

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[PATCH 00/11] Introduce Simple atomic and non-atomic counters

by Shuah Khan

This patch series is a result of discussion at the refcount_t BOF the Linux Plumbers Conference. In this discussion, we identified a need for looking closely and investigating atomic_t usages in the kernel when it is used strictly as a counter without it controlling object lifetimes and state changes. There are a number of atomic_t usages in the kernel where atomic_t api is used strictly for counting and not for managing object lifetime. In some cases, atomic_t might not even be needed. The purpose of these counters is twofold: 1. clearly differentiate atomic_t counters from atomic_t usages that guard object lifetimes, hence prone to overflow and underflow errors. It allows tools that scan for underflow and overflow on atomic_t usages to detect overflow and underflows to scan just the cases that are prone to errors. 2. provides non-atomic counters for cases where atomic isn't necessary. Simple atomic and non-atomic counters api provides interfaces for simple atomic and non-atomic counters that just count, and don't guard resource lifetimes. Counters will wrap around to 0 when it overflows and should not be used to guard resource lifetimes, device usage and open counts that control state changes, and pm states. Using counter_atomic to guard lifetimes could lead to use-after free when it overflows and undefined behavior when used to manage state changes and device usage/open states. This patch series introduces Simple atomic and non-atomic counters. Counter atomic ops leverage atomic_t and provide a sub-set of atomic_t ops. In addition this patch series converts a few drivers to use the new api. The following criteria is used for select variables for conversion: 1. Variable doesn't guard object lifetimes, manage state changes e.g: device usage counts, device open counts, and pm states. 2. Variable is used for stats and counters. 3. The conversion doesn't change the overflow behavior. Changes since RFC: -- Thanks for reviews and reviewed-by, and Acked-by tags. Updated the patches with the tags. -- Addressed Kees's comments: 1. Non-atomic counters renamed to counter_simple32 and counter_simple64 to clearly indicate size. 2. Added warning for counter_simple* usage and it should be used only when there is no need for atomicity. 3. Renamed counter_atomic to counter_atomic32 to clearly indicate size. 4. Renamed counter_atomic_long to counter_atomic64 and it now uses atomic64_t ops and indicates size. 5. Test updated for the API renames. 6. Added helper functions for test results printing 7. Verified that the test module compiles in kunit env. and test module can be loaded to run the test. 8. Updated Documentation to reflect the intent to make the API restricted so it can never be used to guard object lifetimes and state management. I left _return ops for now, inc_return is necessary for now as per the discussion we had on this topic. -- Updated driver patches with API name changes. -- We discussed if binder counters can be non-atomic. For now I left them the same as the RFC patch - using counter_atomic32 -- Unrelated to this patch series: The patch series review uncovered improvements could be made to test_async_driver_probe and vmw_vmci/vmci_guest. I will track these for fixing later. Shuah Khan (11): counters: Introduce counter_simple* and counter_atomic* counters selftests:lib:test_counters: add new test for counters drivers/base: convert deferred_trigger_count and probe_count to counter_atomic32 drivers/base/devcoredump: convert devcd_count to counter_atomic32 drivers/acpi: convert seqno counter_atomic32 drivers/acpi/apei: convert seqno counter_atomic32 drivers/android/binder: convert stats, transaction_log to counter_atomic32 drivers/base/test/test_async_driver_probe: convert to use counter_atomic32 drivers/char/ipmi: convert stats to use counter_atomic32 drivers/misc/vmw_vmci: convert num guest devices counter to counter_atomic32 drivers/edac: convert pci counters to counter_atomic32 Documentation/core-api/counters.rst | 174 +++++++++ MAINTAINERS | 8 + drivers/acpi/acpi_extlog.c | 5 +- drivers/acpi/apei/ghes.c | 5 +- drivers/android/binder.c | 41 +-- drivers/android/binder_internal.h | 3 +- drivers/base/dd.c | 19 +- drivers/base/devcoredump.c | 5 +- drivers/base/test/test_async_driver_probe.c | 23 +- drivers/char/ipmi/ipmi_msghandler.c | 9 +- drivers/char/ipmi/ipmi_si_intf.c | 9 +- drivers/edac/edac_pci.h | 5 +- drivers/edac/edac_pci_sysfs.c | 28 +- drivers/misc/vmw_vmci/vmci_guest.c | 9 +- include/linux/counters.h | 350 +++++++++++++++++++ lib/Kconfig | 10 + lib/Makefile | 1 + lib/test_counters.c | 276 +++++++++++++++ tools/testing/selftests/lib/Makefile | 1 + tools/testing/selftests/lib/config | 1 + tools/testing/selftests/lib/test_counters.sh | 5 + 21 files changed, 913 insertions(+), 74 deletions(-) create mode 100644 Documentation/core-api/counters.rst create mode 100644 include/linux/counters.h create mode 100644 lib/test_counters.c create mode 100755 tools/testing/selftests/lib/test_counters.sh -- 2.25.1

5 years, 1 month

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[PATCH] selftests: splice: Adjust for handler fallback removal

by Kees Cook

Some pseudo-filesystems do not have an explicit splice fops since adding commit 36e2c7421f02 ("fs: don't allow splice read/write without explicit ops"), and now will reject attempts to use splice() in those filesystem paths. Reported-by: kernel test robot <rong.a.chen(a)intel.com> Link: https://lore.kernel.org/lkml/202009181443.C2179FB@keescook/ Fixes: 36e2c7421f02 ("fs: don't allow splice read/write without explicit ops") Signed-off-by: Kees Cook <keescook(a)chromium.org> --- .../selftests/splice/short_splice_read.sh | 119 ++++++++++++++---- 1 file changed, 98 insertions(+), 21 deletions(-) diff --git a/tools/testing/selftests/splice/short_splice_read.sh b/tools/testing/selftests/splice/short_splice_read.sh index 7810d3589d9a..22b6c8910b18 100755 --- a/tools/testing/selftests/splice/short_splice_read.sh +++ b/tools/testing/selftests/splice/short_splice_read.sh @@ -1,21 +1,87 @@ #!/bin/sh # SPDX-License-Identifier: GPL-2.0 +# +# Test for mishandling of splice() on pseudofilesystems, which should catch +# bugs like 11990a5bd7e5 ("module: Correctly truncate sysfs sections output") +# +# Since splice fallback was removed as part of the set_fs() rework, many of these +# tests expect to fail now. See https://lore.kernel.org/lkml/202009181443.C2179FB@keescook/ set -e +DIR=$(dirname "$0") + ret=0 +expect_success() +{ + title="$1" + shift + + echo "" >&2 + echo "$title ..." >&2 + + set +e + "$@" + rc=$? + set -e + + case "$rc" in + 0) + echo "ok: $title succeeded" >&2 + ;; + 1) + echo "FAIL: $title should work" >&2 + ret=$(( ret + 1 )) + ;; + *) + echo "FAIL: something else went wrong" >&2 + ret=$(( ret + 1 )) + ;; + esac +} + +expect_failure() +{ + title="$1" + shift + + echo "" >&2 + echo "$title ..." >&2 + + set +e + "$@" + rc=$? + set -e + + case "$rc" in + 0) + echo "FAIL: $title unexpectedly worked" >&2 + ret=$(( ret + 1 )) + ;; + 1) + echo "ok: $title correctly failed" >&2 + ;; + *) + echo "FAIL: something else went wrong" >&2 + ret=$(( ret + 1 )) + ;; + esac +} + do_splice() { filename="$1" bytes="$2" expected="$3" + report="$4" - out=$(./splice_read "$filename" "$bytes" | cat) + out=$("$DIR"/splice_read "$filename" "$bytes" | cat) if [ "$out" = "$expected" ] ; then - echo "ok: $filename $bytes" + echo " matched $report" >&2 + return 0 else - echo "FAIL: $filename $bytes" - ret=1 + echo " no match: '$out' vs $report" >&2 + return 1 fi } @@ -23,34 +89,45 @@ test_splice() { filename="$1" + echo " checking $filename ..." >&2 + full=$(cat "$filename") + rc=$? + if [ $rc -ne 0 ] ; then + return 2 + fi + two=$(echo "$full" | grep -m1 . | cut -c-2) # Make sure full splice has the same contents as a standard read. - do_splice "$filename" 4096 "$full" + echo " splicing 4096 bytes ..." >&2 + if ! do_splice "$filename" 4096 "$full" "full read" ; then + return 1 + fi # Make sure a partial splice see the first two characters. - do_splice "$filename" 2 "$two" + echo " splicing 2 bytes ..." >&2 + if ! do_splice "$filename" 2 "$two" "'$two'" ; then + return 1 + fi + + return 0 } -# proc_single_open(), seq_read() -test_splice /proc/$$/limits -# special open, seq_read() -test_splice /proc/$$/comm +### /proc/$pid/ has no splice interface; these should all fail. +expect_failure "proc_single_open(), seq_read() splice" test_splice /proc/$$/limits +expect_failure "special open(), seq_read() splice" test_splice /proc/$$/comm -# proc_handler, proc_dointvec_minmax -test_splice /proc/sys/fs/nr_open -# proc_handler, proc_dostring -test_splice /proc/sys/kernel/modprobe -# proc_handler, special read -test_splice /proc/sys/kernel/version +### /proc/sys/ has a splice interface; these should all succeed. +expect_success "proc_handler: proc_dointvec_minmax() splice" test_splice /proc/sys/fs/nr_open +expect_success "proc_handler: proc_dostring() splice" test_splice /proc/sys/kernel/modprobe +expect_success "proc_handler: special read splice" test_splice /proc/sys/kernel/version +### /sys/ has no splice interface; these should all fail. if ! [ -d /sys/module/test_module/sections ] ; then - modprobe test_module + expect_success "test_module kernel module load" modprobe test_module fi -# kernfs, attr -test_splice /sys/module/test_module/coresize -# kernfs, binattr -test_splice /sys/module/test_module/sections/.init.text +expect_failure "kernfs attr splice" test_splice /sys/module/test_module/coresize +expect_failure "kernfs binattr splice" test_splice /sys/module/test_module/sections/.init.text exit $ret -- 2.25.1

5 years, 1 month

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[PATCH v2 0/6] kselftest: arm64/mte: Tests for user-space MTE

by Amit Daniel Kachhap

These patch series adds below kselftests to test the user-space support for the ARMv8.5 Memory Tagging Extension present in arm64 tree [1]. This patch series is based on Linux v5.9-rc3. 1) This test-case verifies that the memory allocated by kernel mmap interface can support tagged memory access. It first checks the presence of tags at address[56:59] and then proceeds with read and write. The pass criteria for this test is that tag fault exception should not happen. 2) This test-case crosses the valid memory to the invalid memory. In this memory area valid tags are not inserted so read and write should not pass. The pass criteria for this test is that tag fault exception should happen for all the illegal addresses. This test also verfies that PSTATE.TCO works properly. 3) This test-case verifies that the memory inherited by child process from parent process should have same tags copied. The pass criteria for this test is that tag fault exception should not happen. 4) This test checks different mmap flags with PROT_MTE memory protection. 5) This testcase checks that KSM should not merge pages containing different MTE tag values. However, if the tags are same then the pages may merge. This testcase uses the generic ksm sysfs interfaces to verify the MTE behaviour, so this testcase is not fullproof and may be impacted due to other load in the system. 6) Fifth test verifies that syscalls read/write etc works by considering that user pointer has valid/invalid allocation tags. Changes since v1 [2]: * Redefined MTE kernel header definitions to decouple kselftest compilations. * Removed gmi masking instructions in mte_insert_random_tag assembly function. This simplifies the tag inclusion mask test with only GCR mask register used. * Created a new mte_insert_random_tag function with gmi instruction. This is useful for the 6th test which reuses the original tag. * Now use /dev/shm/* to hold temporary files. * Updated the 6th test to handle the error properly in case of failure in accessing memory with invalid tag in kernel. * Code and comment clean-ups. Thanks, Amit Daniel [1]: https://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-next/mte [2]: https://patchwork.kernel.org/patch/11747791/ Amit Daniel Kachhap (6): kselftest/arm64: Add utilities and a test to validate mte memory kselftest/arm64: Verify mte tag inclusion via prctl kselftest/arm64: Check forked child mte memory accessibility kselftest/arm64: Verify all different mmap MTE options kselftest/arm64: Verify KSM page merge for MTE pages kselftest/arm64: Check mte tagged user address in kernel tools/testing/selftests/arm64/Makefile | 2 +- tools/testing/selftests/arm64/mte/.gitignore | 6 + tools/testing/selftests/arm64/mte/Makefile | 29 ++ .../selftests/arm64/mte/check_buffer_fill.c | 475 ++++++++++++++++++ .../selftests/arm64/mte/check_child_memory.c | 195 +++++++ .../selftests/arm64/mte/check_ksm_options.c | 159 ++++++ .../selftests/arm64/mte/check_mmap_options.c | 262 ++++++++++ .../arm64/mte/check_tags_inclusion.c | 185 +++++++ .../selftests/arm64/mte/check_user_mem.c | 111 ++++ .../selftests/arm64/mte/mte_common_util.c | 341 +++++++++++++ .../selftests/arm64/mte/mte_common_util.h | 118 +++++ tools/testing/selftests/arm64/mte/mte_def.h | 60 +++ .../testing/selftests/arm64/mte/mte_helper.S | 128 +++++ 13 files changed, 2070 insertions(+), 1 deletion(-) create mode 100644 tools/testing/selftests/arm64/mte/.gitignore create mode 100644 tools/testing/selftests/arm64/mte/Makefile create mode 100644 tools/testing/selftests/arm64/mte/check_buffer_fill.c create mode 100644 tools/testing/selftests/arm64/mte/check_child_memory.c create mode 100644 tools/testing/selftests/arm64/mte/check_ksm_options.c create mode 100644 tools/testing/selftests/arm64/mte/check_mmap_options.c create mode 100644 tools/testing/selftests/arm64/mte/check_tags_inclusion.c create mode 100644 tools/testing/selftests/arm64/mte/check_user_mem.c create mode 100644 tools/testing/selftests/arm64/mte/mte_common_util.c create mode 100644 tools/testing/selftests/arm64/mte/mte_common_util.h create mode 100644 tools/testing/selftests/arm64/mte/mte_def.h create mode 100644 tools/testing/selftests/arm64/mte/mte_helper.S -- 2.17.1

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